{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb44328aae64079afaf84e67b93931f80237623eeaac5f75805508571c88b0929",
    "signature": "0xa2fbce917f521c86549792734357697fbe7718560810b815e1b52ca7ef8415795a6ea7ebaec43212c1214c0fb23f46b7c18d676a6e8d40a33655ed48a1083cb51b",
    "signer": "0xDB26a8F439E622a798439FfbC77B3801E3320d59",
    "userId": "731620709"
  }
}