{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943263428",
    "entityType": "User",
    "nonce": "0x957ed796ad0207bf5cfccfedfefef061243126cf1c9469e56db01b51ad8280ae",
    "signature": "0x3397feb8c41f4507dfbcf8f974d6a094c4a9000f938a7a5e1593389ecb173bf0213bfecb8c410cc043e01ca2ea0c727c0c9d1004461e04f8ef9a7e6b905669f41c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}