{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620307004",
    "entityType": "User",
    "nonce": "0x67126fefd84dbbf6fbbd93700f994fdf04b20d0427e91cae813050a56a76af19",
    "signature": "0x217364b2f6cccb4b684d40577326daa3c856f500662dfc1753cf4e2ed6a9079e6846d4c0edd63da6736b37b1400ca608148249de599ba7a224c05a2f7b2c1e2b1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}