{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1645731",
    "entityType": "User",
    "nonce": "0xfb53fb3cc79e1c9b516778c2ffad903b3e6aee2a3e2679ec11652f28980bf378",
    "signature": "0x208973365824ed4c8ff52e18ea763e128454fd796f548b930fcc74107a73ca546b72b3c6c8dc02daa3d34f952fd0a543be22be24d0bf879b1f75553b44ebaf391b",
    "signer": "0x7094144C776594790B5E922D084562dB60549BD8",
    "userId": "602217700"
  }
}