{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "652998855",
    "entityType": "User",
    "nonce": "0x298e62210959c1278f30ce1ea869226714b9dcb6d7929109178ea671df1e0632",
    "signature": "0x4d7f3a7d2f2a4406705590631422f4e337eaa4db64f5247b25aea86975ee516306863ee8574a580327b8ad3ebad790f0fbfd021e768eecb32d86717688b3c0bd1b",
    "signer": "0x8631fDCeCd3C5Eb60AA0cB74D46Eb7CE8D8e26a5",
    "userId": "200559566"
  }
}