{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "409129",
    "entityType": "User",
    "nonce": "0xacfbb19376c338d7685faeaad1abcba72a76dc5e58181932e814d963a0ceca57",
    "signature": "0x10df6d9a5c1ea4ac288cb1c192ccff66686aedbbb55e271304a0aad5da17c2ff07507d3b797904c7a8e9eccb01f45d625c58603c514358a710b5b58b788359411c",
    "signer": "0xE4c0c73a0c0CD7f65f1bE942f8127c8753aB89D9",
    "userId": "857284925"
  }
}