{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "883812378",
    "entityType": "User",
    "nonce": "0x7fe593546cafec3f9feac9557e8d9595a061a035d90cdf61977d2feba76a2720",
    "signature": "0xe055e2243913ad6e4564f240ec284fc7c120afc8ad07716c23995526c28f2c8334e8d272059d7fa3a3665468fda2a260073a22adf4b2cb93cf9fa9cf758f375f1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}