{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "666681611",
    "entityType": "User",
    "nonce": "0x60a33096177ddb7095f244997e1252d37263e572b752c46e9cbdc960decd3a1e",
    "signature": "0xc850aec88d43358a31277784e549a0614f62774a275409e3657985af0548de5c2892c7b8c02b04a53288903d7f9e70f81b60d652e29d45423e7b3713385c15591c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}