{
  "manageEntity": {
    "action": "Update",
    "entityId": "750637079",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdc412e578dd6d7206eb5f39511331b2a0b70245e685ac0d0deec38ba816bfc10",
    "signature": "0x160ad6304fbe1af017cdf40a4366179fc31c5ccb0cdad8219d5df8ecad3f00bf5d5a2b5a171f2a41e68a480bc6562c341692bb869b35719c271453e442ca979a1b",
    "signer": "0x6ABeC6bBE57CCcb5414C4f1DF7397331b9828727",
    "userId": "750637079"
  }
}