{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "494113495",
    "entityType": "User",
    "nonce": "0x9dd452d45f061d32bf1027c6fc4e0b78cf69a0ad1e47b2238512a95bcf56e760",
    "signature": "0x842a44aeff4f35a70a52f6ad007803933a2aebde60730e28d2078f79a3c043c654ac8d2b77046d40c511d4d0b436747169189a3b133627dffa332dc145befbad1b",
    "signer": "0x5c51216FbbB9B7A562f11267f91f72A7be1e8DE3",
    "userId": "105826"
  }
}