{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0d8f78f46ddd9b88362b773e5e6c26934e887968eee15933665c7d2b55ab607b",
    "signature": "0xdd7c1fcdab0ae072b675126920afec3c1723badc2320f42e9da980ba5c988e8349a84ee7c6c1b82e4816f48cfce1089143eb0d601ec2d44a65c68c7a837e2df41c",
    "signer": "0xF4b3744A3acf7b2f977947FC5C559952b7ca4C14",
    "userId": "938222319"
  }
}