{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "91965250",
    "entityType": "User",
    "nonce": "0x542d9e32583b1b9334cf8acf075d8805935f23a4ab03b898b7723aacaa18a520",
    "signature": "0x4d7194f6d54824ae60bdffce0d137f707260dd755e75cc1bd0b27861c55ba77637ce4ad17fb12f1baefb6b004c7f30ec7a691ad9715ea5bd1f0d03c9f5abfdac1b",
    "signer": "0xaD52D1EE1cE4f3733864C144509576e22eeCbe26",
    "userId": "777447787"
  }
}