{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40758",
    "entityType": "User",
    "nonce": "0xf35cb32648f01f43fd240b802831507f78d5271c786efb2c36b35c4309167e03",
    "signature": "0xeb2637f6769bdb2dfa739d2002f7a24351f3267601e96b2db5449c2c38fbae07173f522dcbdf979dcb6d914ff8ba528cb8ff08cc9fbed0903c81f4a3a492a5f91b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}