{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "507325",
    "entityType": "User",
    "nonce": "0xb6d42364037975ace47389058b9ff92b3250a9d46c85186566e714ca0901bfc5",
    "signature": "0x5c6e4acd631d08554bf3eb62e1074c01a8819fe0d9e8a64d2987f78322829ce33956b90192dcbc361dcb10ae13352c057bfe46355ad6dd4cb56e150c7cd11ff01b",
    "signer": "0xdcAEaeb1b2DF396B02cDe67B3D030cDf38261A5B",
    "userId": "58531"
  }
}