{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "978785085",
    "entityType": "User",
    "nonce": "0x44d8ed46cad431b6ebcfec9d46335af6a257092ce3cbb51ed468f2245882196b",
    "signature": "0x5d7b53c6f8b5355ee9db3e968813946328b6680788da591c3ff6566ff937a87c290cae4256faac6b481ba35150c6492493ecbac67b61185c35c08b8d8ed5d9ae1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}