{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "74222",
    "entityType": "User",
    "nonce": "0xff3ff5bce13875ed9bcfa3be83d8251add52bd34a3c63329465de7f50b06e098",
    "signature": "0x41fbd0f1b869554f593d8af0724f487b22662ff7c81e1bfb294b5f55ae94a1126335050684f80459e938e0178a51eda8ad45e49306577e2fee2d8f3df535d7c41b",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}