{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8f9888cece011fbef2bc1533e6f454d88bdb28aacbb9d73b1796dd56267c8124",
    "signature": "0x37867b44c7200bb1080bb1355998591f99d287ecd476c4324794be3df08acbc84296151814b6b2833b2ae30cf8a251543d30ea4a60a2f14c9e84d8468f5243e61b",
    "signer": "0xAE93673536540a9A049787fD074B3DDe7E4b3eCE",
    "userId": "792185870"
  }
}