{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x24211a72da5d9e47194ac605b30ae1d907b57fa8fd4c31d03ac13311511c9f61",
    "signature": "0xf121f91b10e994728961364bc27ce926c04def14c475515ece6e8e356c145c48571824390dd88c6ea03fd57fe98025cd442451b22f4212bf18155aa8ee2a58011b",
    "signer": "0x3cB284051537DBb1b75b59048551cfB3e2ce7517",
    "userId": "351797811"
  }
}