{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "923480019",
    "entityType": "User",
    "nonce": "0xbbad11131663a649794a516db32b6be319320969ff9848a7baab849e1a1a47f3",
    "signature": "0xc7ae6178b6244c6e94f74c12d620a3745c5c4041f022223642036663e35e4922033dca54a5d4dff2cfc772729a30936ff7c13c3ac6e7c976fee87c84411e7bcc1b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}