{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301112",
    "entityType": "User",
    "nonce": "0xb57bfe6f82c1f19738bf30f77ea51b688d7cd621c0838195e84c674f7deffdf2",
    "signature": "0x922d07f2e2cbcd69d319a7ab1d23ebf09a979ef211cd3122e48e3e7d6fbb95c77403c9e5cca85649ef94b56f0b931d614fa791d4d0fe04fed999fe7fae31d4501c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}