{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe46899ca356e36e58acb2f36da9b733b00579c1036705f87f3726481682db8a8",
    "signature": "0xcf8ce44352caa391cf3d06ab30dd280a3d7f71c961d1a5968db5c53d5a7d12d61975a22deeb4797091123614f2ce53290f65ea892a96f1a5595584c32ba30b361c",
    "signer": "0xd3cA7B55fFc21a012A4F3fa07C2C8D79aA70edDf",
    "userId": "669483561"
  }
}