{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14509",
    "entityType": "User",
    "nonce": "0x50244d4d4bd21673b28af1283e9f8569e5a772af68b3fc90a1b695bfb1377bc6",
    "signature": "0x7a5a3870a25ec619260973ec72a01ae0f261101df2751eaf579a89fc5af757f7113d4185a652de6d4880ca55de5985bb7b29f36957571928e341cf53cce022951b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}