{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xaca45ee4d9955141ec963db040be80bc0160423b342054aef3ace84d7e10ae32",
    "signature": "0x53748c3c5d3d32c9dc7f6a1cbd8f0e2469b7cef7efde1365931fc37b8c26db8e039808c8e058d00f6825631656866d4ec20a7473dd2094423422ddf674ec512b1c",
    "signer": "0xA9Fcc0C9caCD5528EA8E6874754D8533Ad1a87F4",
    "userId": "293976821"
  }
}