{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "401640408",
    "entityType": "User",
    "nonce": "0xd148193c5a54290125bf7ff557d2917c32eb7cfbd3677434726c7e57022eee8d",
    "signature": "0x3bdb40d3379de886a8a707ef92b23bbf26f057ec23818924a67b5593dbccd37f06df323614cf6235f3d02b2edb2842f825ec99e292b684a5a1be9f54e97dda4e1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}