{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x83103bda2a9000ad62790a86a93be8797094d735d35ebef3570866f4d06f9d08",
    "signature": "0xb6f23c98f9b6a46fb3f342ce5b886fcc44ba54e4ce75966a383e482b0a2c079e70e2f495b6b731aabbb0d6da2513a33142bdaccc06bb0c7458cf3f9a62e180761c",
    "signer": "0xb7140224D34aB763e8B738024ad10e024290D03A",
    "userId": "992308744"
  }
}