{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc0fb9dd914ac4179cae042c5a40612561158e85e4fcd6b90bdad0d39857a478d",
    "signature": "0xd91ded382bb5c993442e3cb3ecc097223a08819a96dfac85f3c3911d817719ac1fefd22aa5ce83126d5bd7c8746cf41bf49447aebeb9ca6fe28ea79156f529f51c",
    "signer": "0x8e54aC358eF80801cDe558Ae1fBEc05b7A713339",
    "userId": "830520539"
  }
}