{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "141879",
    "entityType": "User",
    "nonce": "0x81bc564592cf168a1304ad1dd845cf6e3fccc442c56edd86c4cf8cbb289af9e7",
    "signature": "0x1ec41b5b7a248cc39e2a8235b47620a58897d5c57460c1fb6756b215561b2727520e0509601120002101fc5aed993ddfb896a5f3b94a4885ab4dbcb6c7e0205a1b",
    "signer": "0x3Ec98fFA47eF7773803b73964753B99Ae2D50f41",
    "userId": "545926315"
  }
}