{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xe721fcd6bb70d397434aac36316a907e57beafbeb2ebf13718bd77d4ec2bb1de",
    "signature": "0xf926e030dca49590f4ae5ea69925ae9f3d623fef2b79bc6a87ed58337de2513a68fe4f87ab6445c4649ea6b917e7c558a815d8ef5b07ae5ea8c0b34fd40dc3421c",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}