{
  "manageEntity": {
    "action": "Update",
    "entityId": "305597863",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xdc897381d2b0e020840582e40d0cb2024b011b0c60ffdfe4cf533443d2690bd2",
    "signature": "0x7d892f4ae240ff71887804a057f8d5572b4816b78bd069d9c3c0ececb971481831b0c8cfa48c3d0d05969866a74b375eb3ed7d8bb7ab7514a7705d01e17662f91b",
    "signer": "0x67bB6F387F0D1D3226E8C821d4e976239bD4C7E5",
    "userId": "305597863"
  }
}