{
  "manageEntity": {
    "action": "Update",
    "entityId": "572305760",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x7ddf8b42e4426152c08fe96edacdee14aecd76dc1de1673296804981dc03583f",
    "signature": "0x7530d81d1c7a41e141c02fd515460f7905dbd1a987743acc013ed9152071425536c2958c8a463fd43d898605f6b5a7b28bd3987737195d238481ac431db7680e1b",
    "signer": "0x3650a89287dc01b8b035442A3E9e1fdCC1CC2324",
    "userId": "572305760"
  }
}