{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0xfbb0ceadb29087019e4d400bfd29cbe92d9846f7146a6ff08486a4ef7ec0a31c",
    "signature": "0x86184a2785cc1d45cada6d80afaf9d1d4557c4b47b278de379c6cafeb7f15f810b9198b70688ffd59d06eab543fed70a6df9c93227ec0aadfa1f64297cad8dcb1c",
    "signer": "0xD03e6976eD4d0102D82a2D2c5D87c67F53CF84BB",
    "userId": "74307388"
  }
}