{
  "manageEntity": {
    "action": "Update",
    "entityId": "155080219",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x1eb28c67b561d7c1af7e44fc11e8e7819298464051e3f6f0b90ad59a2a9f7959",
    "signature": "0x86dbcbe0ec688403ad01ad7d60c82c13b1ade12e3cd00f20929c2952cb55633e473786a0e87e4851821c9de043585e8d08723ba9cb2b02bc2635356bf1472ec41b",
    "signer": "0x48BB6672A6A0e7f39D81A15AAE71cd465a550a15",
    "userId": "155080219"
  }
}