{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x42fe2c7335aa7e49e0076d7a8b2f178883529de158f2b679ab66712d1a54208d",
    "signature": "0x2f1a1e4a9f503cef93191d280a5092be0898889f2ccaa0f691095f9c39a4e3a8405d74cc13c158dd94d6ce7a0cc87b81491b718863899275500fb12c26c59ac51b",
    "signer": "0xC0c59008fCc0C97E2D828Af5487E16C46aFFd00e",
    "userId": "280265219"
  }
}