{
  "manageEntity": {
    "action": "Update",
    "entityId": "520139273",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierabdd26vtr24lep4a7emopswpio5dxkftayk3mxtnktxlmns2q5yha\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":974980848}]}}}",
    "nonce": "0xdb818af5a38f0beaa9f8f378a968f9476a1ae138cb72e9d102cf8b26776a287e",
    "signature": "0xb060b2c9664b23582a7ebcaba329abe0e45ecf7c8b4eab1c4643fcd61f49a23948227f3e4006faf81ab3db1e5e55ca98be1884d73c45a29e03688872e0685dd41b",
    "signer": "0x2bA32d8171A572be6B52C910E5Ef9EFf5790c3cc",
    "userId": "520139273"
  }
}