{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x01c693351592249320c5156d9e20fe29b20e8804449e2f6b42690c7ab0242cc2",
    "signature": "0xe37a89d3ab7bfe31055473b2f5d23bbc8e4803a53196ea6bb8189082a5ebe4a945be4523b9fd6dec96e97207bc095ef67a7ef304e7e33349fda36ab7f375c4881b",
    "signer": "0x16BE3cc7Ee03C75AD10a94fb7234B045D351825c",
    "userId": "66529124"
  }
}