{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6656adf636ef347002d4b05d689ec6c09329470e51a35aa14bd790e8d323b3a0",
    "signature": "0xc32ea5cbf9810a7b373d656ef631708b8b5c4efcc87278a652896b26f9933d4e6ed339b529e7455b66a298ab813fccb205f94e20267640c81706afa0794bc1ac1b",
    "signer": "0xEFA5862656812D54928c0E06C9a83EE687AA63f8",
    "userId": "974988825"
  }
}