{
  "manageEntity": {
    "action": "Update",
    "entityId": "391333792",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x87a4b3c653a2163276723e3ee7100068d99a9acfaaeaa7b71668637ce913d103",
    "signature": "0xb247305010b25dd0a192be5acbfc4df7e7eeae2a0d5cb24affb1daf3b518a3fc07b882f670317632627f962dab01ac3b6e21de6ddcdb81f1298bfa59f6cbf09e1c",
    "signer": "0xe58F2D8128273F34a65a7d2cA9D026e70185D1AF",
    "userId": "391333792"
  }
}