{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843",
    "entityType": "User",
    "nonce": "0x96e914f40cc6cb20f53ce7da57e715d8b1301f9b3a960db144ee1d5957e80e88",
    "signature": "0x5a2f4676386fba1c9dc572e9930b81a09356b83af5afbb2c36934b87d335be927f4b50b229d8a3551b0597018c87900fa9f5d96f9f132e05d260eb9a9fb1fa031c",
    "signer": "0x4F14d2040ba5B6689cADBCE8Aad01d9f5d6a9b6A",
    "userId": "590824166"
  }
}