{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "975661020",
    "entityType": "User",
    "nonce": "0x4d68fc8aa0cc2c42ed918d3bf837a861d5aadf587238237f52170db5b8c295c2",
    "signature": "0xc34dcacfaf04e5daccb39cef01f77def6eff420d96b55b6fe4d6e5c5c36928e5510cb00f63b940777d758a45a365e6d0f6716cd29061db61fa102cfde523c0001c",
    "signer": "0xa3C91a44f620f0b95468bEC359f89edb95AE3cdC",
    "userId": "904405512"
  }
}