{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "25394182",
    "entityType": "User",
    "nonce": "0xd6f609c9998755927924dbee899cd48ec8f63e6316d09f2783ae22aeb1592879",
    "signature": "0xc80cd2edd218ff5811efde02399c05273a0dfb01ba18f1d9c2c6cbc6b50200ff7950910fe5d9d505274cadbea0a1c31aff36234cf01c3ac06499b8af72fb5f4b1b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}