{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8ca42d9bdb623b973de1631cca58f4b07f45fdb6e84012443a8cc1747520bb1e",
    "signature": "0x904de8abd3dff4b5d2e264b0e0ea514f933d4ceebb7c18c0cf6a486ca119a93d79e35181244d446617ba830b4f9c84b810c4c9e31fc87b2b37cebd9316a230ac1b",
    "signer": "0x98426aC7F9c10c2F0c2a7914943053562b5db449",
    "userId": "981395135"
  }
}