{
  "manageEntity": {
    "action": "Update",
    "entityId": "583264378",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xb31d8783af60b50caad87cbe037bbeb792985c9ca76196e8bccdee104cfe8d9b",
    "signature": "0x41fed8b2a6dd6da82e4bb91df5203e5aebdcf9cdfd15750c926f94ab44cd87734606e5e18daf233a96e7164510d2c718ba2c84990a2055abf80af2d2867a22261c",
    "signer": "0xCC0d2E17031Bb2a4822bc4c54ABE3a667ef3D494",
    "userId": "583264378"
  }
}