{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "875378857",
    "entityType": "User",
    "nonce": "0x149de546334e33cedbf25e713c0d01986c73899d58abfb2592a979d9d0d1e415",
    "signature": "0xc50661d9a037dd3012e0f6dc48eef857f8752fd5a58014feda826b6f84bba80e6c81e43fb8108d08e345a694f601207b9ab3dcc62799a0e5398ad3defd6bf9581b",
    "signer": "0x27eB4b469aE053b72c26B3e9c68a655390Fe24fB",
    "userId": "42216"
  }
}