{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "123827988",
    "entityType": "User",
    "nonce": "0x6cf9306192e8c56f57e598e5cbf911faa7826d23b33ad1ae529930f7ed6ccf23",
    "signature": "0xa0a59781016b67f46813c1e2450582048157fa183ec9eda38a1bb1a7ea8260917c8ca5ff7d21feb9548163f33d4cf67b02319246959aac76701241bb158e246f1c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}