{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "66154",
    "entityType": "User",
    "nonce": "0x93d536bc0d7c78522f181e5fd0611571e7d3758d8fc4ba86e60816ec9294ef4a",
    "signature": "0x7264b8d5aed9743c75862af6ea08e1afcd5758e83dd873c5edccd20f60297eb655747f7643b69db6f7aae9989d3e1c1521aa04bb0e0a9ab156ec628a7d86366b1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}