{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x404fafe93d53e53b3c90b2e1c45122b64bf5afe7fa8d0adaa0ad962fbdfba98c",
    "signature": "0x774b6c97b7a3ddb68388eaf7e1b8bb73702b3ccb3c93a52668b6085865c1607f45412894ddb474416b57365e0a22e23ac4d53051b226b455ea7921f2e8e5d8971c",
    "signer": "0x8c83aB7F6a7f7A93A7CeFeF6E16b212bA43529f5",
    "userId": "549340592"
  }
}