{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x61ed82ca5e6683d48528ecc5a3470850f55a01f032c91703cf09a3cc75afa488",
    "signature": "0xe80266a2d0cd4ba64a46e5997c6f47d2c32892defde2305146336a56b1fa74aa7c91c73ace49d352de5dd29a056fd60795f4dae363742f496c189217caef89901b",
    "signer": "0x28bFf1Fd30814d76B1D502B7Fb038a92E17aaE50",
    "userId": "819448182"
  }
}