{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "948556978",
    "entityType": "User",
    "nonce": "0x750399c03c61bfe9e19006f803deafede9000825c742fead5a5727f3209c24c5",
    "signature": "0x042b442373799ca642437105aff50435258924667133eca6dd83e9cc511bf67469e114e0fac2c029d713bacc8b2f7ccf8059fdfaf9dd6d0efa6bd6b190f0dcf61c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}