{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906184213",
    "entityType": "User",
    "nonce": "0x64f57bec26a52c529f186325d14d8b7351c9b65e8ab162dba612e243fe7003e2",
    "signature": "0x2b33d855bafe2ea279f4b8ad487c25701b040edbc4d1f711ff5d338adeeedf195aa1f4662800ce9694559cf873404541f7d342c164fe3860a60293b48c2321ae1c",
    "signer": "0x9E7FDEEcc2f0Db11e56CD39d424690bc6CD308B6",
    "userId": "223270106"
  }
}