{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x74c83027a5434c1f82fafb3c8f1a1758db8982bc626a1d22b0524fed80830340",
    "signature": "0xf8ed59922b13ac459e534f1fa42d9066b59c0ca2d13851fda704125fdc417abe285f147251335268ba4004f5def272e487004128f3544d62f0b69d67c41cbd051c",
    "signer": "0xfe766b536A94576f9505fA20c59ff92D8f72dAf3",
    "userId": "799013053"
  }
}