{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7fcd0df38b42740f254a3856ae58162308d8d0807cf43ceb5be20e2782cb4e99",
    "signature": "0x4eb94e85ebb70c1696d7c51f817598132d1a7e3ccf72622e565acf559f6dbe63085fceddf7f4230c742815586f94ae7429d9e6f2cc88a82fcb8bb4705d2ce7431b",
    "signer": "0x0527E71aBe15614de9A48A8e54D732dBA4C8b009",
    "userId": "754738576"
  }
}