{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "780083254",
    "entityType": "User",
    "nonce": "0x94d7fb77c87049bbe25c568ba6ba12c2f113782a2f959f8a6704061385ec65db",
    "signature": "0xa3e8df38e75640d9b65402b6af985b55a17c12155f18dbabf695212a2a260e5e37dd69fbbffa41d9fe702a3548e9be71386cd83a373d607c111fed91a0779fe11c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}