{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708077815",
    "entityType": "User",
    "nonce": "0x20554d68c48de1c0c5210870ed4905c302cd86351626a3d2da2f8ba637d9c926",
    "signature": "0x5a28828893611aaaa1af626b9c8356967b5345e3b6882263297cd749827e9148325211a835d85063ada15b43adccd3c397d2ccd9efe181ee85947cf0032fdb001c",
    "signer": "0x9a5ed0b3F555Cb77D9B73d00AF43BaA4F88b1487",
    "userId": "736503935"
  }
}