{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x11b09d80dcd204235f24ac1505890518c2548e2b4b25ce63ad20acae4b76f1d9",
    "signature": "0x6a15bed653f5ae26df7829c107602edf761e6ac1d7dea3893f4f592b906b9a55645ce457841a9bdb021f4a3b13c5e1932f058245fe1e2344e8a03b393af893201c",
    "signer": "0x4D54a1406203A3beDBd435F0e20237e57c38cf25",
    "userId": "900818026"
  }
}