{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "335392",
    "entityType": "User",
    "nonce": "0xc7cff887ba2fd4c5e55b0229657f2b3ef25c50824be16fa40359a4af0cd550ca",
    "signature": "0xc0e98232a8d40306c9a3363fcf8fee2f86fb69cbab1b19e17ae25e64ada34c6824b30406ccd7da181e06c01263036a18b399e19c39d321e5fcfaebdf740fc6c01b",
    "signer": "0x546643B8F8164fB6dC42c93F65D31C17676Cd995",
    "userId": "305541868"
  }
}