{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319758166",
    "entityType": "User",
    "nonce": "0x4b83432d110a19d8e6905d1188c3a4c52d0ebb16a1ea1f471671a108e1b88010",
    "signature": "0x464343208ad57472f76d9cfbc861985d839c274e2d7f1b97b7658e61406ac08029f60ea3ec7814dd1aa0cc0ff49c0aecd32890ed52081e1953df106b7b05e7cc1b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}