{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "607336452",
    "entityType": "User",
    "nonce": "0xb23d14bd3237b8d1630cd2858be165892288a4f39ace110e4d74888a9cde20ac",
    "signature": "0x2c9d0f3acfd875f8cd74f1eaf02382e41508d7722b90c588b0914e9a2f56103226144dedd79cfd4fc8f3de885cc562f7cb6f673b70831de9209a1bbd8d1903991b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}