{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "618242981",
    "entityType": "User",
    "nonce": "0x7a665d7e0eb37eaffb9cf4b750170b3f6904d0a83b3dfae57fe25227a2f7f0c2",
    "signature": "0xe05a4b808fe8c1e4d8477e55ecc6a1a57a4664fdeb4b8cc0a68b65c289271c87456437316c90a05609d0c4be1a872b0a57615794107a1dc5c4ff8e41050687101b",
    "signer": "0xE09A95aA63d8B1AE975406d646074B73ffBD4ACC",
    "userId": "27841"
  }
}