{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "745427282",
    "entityType": "User",
    "nonce": "0xd7ee4cc4af7127fa03fa0e370c4b4e6e868fc13ae91ecd90f8897c1a4b9fd8e3",
    "signature": "0x52c1da085cbf6471adb9038e298bcddcc9657b55dbe67a69bd207c68e57d2be528747036a2bcaa485f22cc5d257d994d45967c1afb7ef39439bdb7495e2ac0be1b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}