{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "78148",
    "entityType": "User",
    "nonce": "0x04d8fb4ca03db0dbe2d0e6c904d993873ff4b5abe08cf5e01fb901ec946b4911",
    "signature": "0xe8ced71e7103091d4fc08526517f68995bc0c69115d6c199a60c96b267e697c501d02c9066fcf2a2424a5ea46d582b5b9c72c7285fec6b212bb52d3b2f477b971c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}