{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "8472743",
    "entityType": "User",
    "nonce": "0xaadc65389c874af4c6ef4c0f4d2fa384d3a0b3128ff1a82d6dd7e739d3111682",
    "signature": "0xafb2187489438bfac2be872f4c4d181600b322585fb2ae605cd31b1d87dd27836c23154207f3da079f741de284a7fadbba0cf1054c1e7ef93c82d203548961ce1c",
    "signer": "0xbc45a3eD7750Da4ae1BbCB9892a1D2a67632c1d3",
    "userId": "304643654"
  }
}