{
  "manageEntity": {
    "action": "Update",
    "entityId": "287135269",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xeb4229dfe98e18d1538d9123a68f2cea059495bdb4e00de47f81867e3554dad6",
    "signature": "0xaa45b9daef48c518a1c6b28beb8f31cc49f5ec8b79253663b14a182953086e454d8612cdbfd070d30260c12d1d1a63c13a2cfd1e55254d466c195e316f04185a1c",
    "signer": "0x3a61f31470389701f20db4161B652272f6bFd700",
    "userId": "287135269"
  }
}