{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "7645",
    "entityType": "User",
    "nonce": "0x39658d8c792fc93e432993fe8cc2542a038bff5215a93802920ad0e8ca3dbe29",
    "signature": "0x3dcb22a677f02123d4cdd2f0e646b484602df36f941684f16ef85b93f530f945686aaa49cc0bf8a6db1467a071945872f93e00c28bb35d6ecc872936d6f93df91b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}