{
  "manageEntity": {
    "action": "Update",
    "entityId": "701183610",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x5f1a076b14fe27f1d034a8a32c072582ee0cf25ad82398ddec170251d9e70747",
    "signature": "0x779bf0352b1e2ef570bac886cd33fffdaff48078e47edb6bdfc335371a994a11221da24aa1c27cd57ba5ea2c1fd1628a6781b9da9ce6bd628af2365925a9e6e61c",
    "signer": "0xe87C31b64532cB37AF1e437F9764994164E9d583",
    "userId": "701183610"
  }
}