{
  "manageEntity": {
    "action": "Update",
    "entityId": "768100404",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x20f6690e69eecf702c939149a6446da78b20dad10ccd0abd1cfda1feb5783691",
    "signature": "0x1e0111bce9934a3d66622f31611d787ee396a4b71792b9924c8f5ac0ef73a6a2546178e13448a1cae07995b5cc152788cc8ffd3d707f4d60e0888f4de5ab8f9a1b",
    "signer": "0xE1F369B8fF59A502D20c16E0C175b6884c03182d",
    "userId": "768100404"
  }
}