{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "323361833",
    "entityType": "User",
    "nonce": "0xedc7c663ad4763995d14dc569474c6cb7c8b1b6f56824dd5adc01b1c9b42795c",
    "signature": "0x4f31323f585d7063631120c37a282f4e8daa498e79d2dc2b94c75cc98cbc9c4c08726659a9f6e88193280a4ef8540457cb4f027864030ba4289e7a7a61b52b251b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}