{
  "manageEntity": {
    "action": "Update",
    "entityId": "371339529",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xbc7a832d9d5694c63e2293d6ddae9c81bb01c3dd62772461ff8c6742ecb2870e",
    "signature": "0x5d24380429fdb55e25e0cf792bb2b326eb47e4bd2eee9960d91b0f9a8da88ac4053380bccb693e58759d588a8c62f44845109d0116d6739af1841a7fbe50239f1b",
    "signer": "0x82eD4826B35d420aDD935299579192Ce1e0951a2",
    "userId": "371339529"
  }
}