{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "345493",
    "entityType": "User",
    "nonce": "0x39c71782676b6d3bd65f43d98eed9c560e901c37c4bd47a12964191ee6424803",
    "signature": "0x461e36f43d8b1737491311fde00eeabd954f19a3a2978d793e32f481fa7b62802be64cfcd37493af24b07bb0811a547d3c5d8c964ee6cf5d92c618a71febc6fa1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}