{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xe99b2f8ccc148889e2bb5de377c030781c7bdb693a0539fe81835f47a6de2e0e",
    "signature": "0xe55b12a9292a660986cd56f8b4152e3ae62ec87f008d12d27786cd8bc558917d40a5b499db60538deafd061cd63f30d2023aef986690d36e97c0a535d5e7e7821c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}