{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398",
    "entityType": "User",
    "nonce": "0x8cbf5e25f1bf325be6bcabd6d09e3e807512c070a1d220f1c54284cb24b39845",
    "signature": "0x06e790b2ab196c7cdba4bc5ab4094f60863b8d72396d1b6ba1135a26d8610f9a14ff6d99dd90dd926d41493a71bc897481f93ca48fb6c1819cf757af574bbef61c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}