{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1510596",
    "entityType": "User",
    "nonce": "0xeee7bab4616648b6619ea2375715c228a08d822a9e01341c05aabbd2cb512229",
    "signature": "0x8b414581e33ae486ec0e1310839c2aa01b217c221129c5a91b06afea72e2f25d088df6f33e8389d8e1d05589ab4457d7f8a5bd813872b982f013223d5d59fa071b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}