{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0xe23c08a82bb5d151e3de4d9a5433bdb8bb17da89fe2583130896719ba790a046",
    "signature": "0x5f49d29474ac647820c0167470bb696b3a9bcd415648a62a81ce5648a7f6fb4858750f5eda483a3de357a3dd2c679f2ba64cd0ed842657bc406f5d19a57e86ce1c",
    "signer": "0x9eCfa3D3CD68A4dFc03296399F57A033fFBD5dA2",
    "userId": "787100055"
  }
}