{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1723993",
    "entityType": "User",
    "nonce": "0x00ef89c8758c110e6ebeda65ae2009a1d2da29ad2b5e440de7da89183f664a1a",
    "signature": "0x1f3ed5a332a1ec41ee92c6b1fd137487e2a5063126c885a6cb7a5c786905626a39718b2246aae4c81f3349fb366b14db564dbddb6c13801b10d081595166c0071b",
    "signer": "0x14fa63A530B7d9254d20B110AAc25ABF49fbfa9d",
    "userId": "182428"
  }
}