{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51296",
    "entityType": "User",
    "nonce": "0xa938a959c551c704a7f60f47e0d001e1ef547cdaa2abfe26dec5968d6d7b1966",
    "signature": "0x9e12a900ce759951abb1b6d173f55938dd7050fc60a087a27d5694964d74104178d0f41737db1232af4b37ac9fa94543b95fbdbddfb96efc6ebdc70fa4f627131c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}