{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "311257477",
    "entityType": "User",
    "nonce": "0xa9ce9260dd619883de824e85bdcb19c7c10f98b9857e45378dcae1a8f80e9774",
    "signature": "0x529789b7a538207d5876a99e98769ac4ae74e51f4b15fcfad528a943429531d41b4c900df557c1ec08c2d75d8aabc1af6876ac0aba502fb8e460969453fb43c71c",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}