{
  "manageEntity": {
    "action": "Update",
    "entityId": "534038283",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierarfuq7bpl3s25jv5spsdlhwnb65rawrqedgw7imqzjrxyhreby5ca\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1206137286},{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x8d7063b8fa9450d7264ac6b5165f69d6fbd0d6535baa7617d34cd75dc28f3df9",
    "signature": "0x61ff1c433ca0e6804bba8818d280707e8d693a14f76665fb2e84a236bc86108e3a7d1736133c308ac413d8bd8a2c8eb2e2c0a30beec524362725247fad5a54d81c",
    "signer": "0x6164d22C5753c6E9f1ec157dDef5A3C606E2f10D",
    "userId": "534038283"
  }
}