{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183891",
    "entityType": "User",
    "nonce": "0x6d71819798f81863a3265cc4374da379f1b7715cb5fd9c5d7235751e35ab5b53",
    "signature": "0xa5943a528c7adc7547c2fd2630debf58171542904347c6269cc49609739b00004db05786b47efcaff49db268e95c9988692d7cfce9c419b42f5fdfa71d9e99871c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}