{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "751223807",
    "entityType": "User",
    "nonce": "0x0371919ed50a45e9da1f2055d6464a39bec2b1120520d05325edeabcee0bc899",
    "signature": "0x8e7ae0f5adb7ee8964d9d0bd4fdf2bd01bfd23159821234721607cdbd5a410ef78299a22dccff42556fc1dc75ed33de435a58d81956ef632783894a9c8de573d1c",
    "signer": "0x05e26a779aeA9788117b9e77D0766016efb938BE",
    "userId": "564997409"
  }
}