{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51888",
    "entityType": "User",
    "nonce": "0xdeae216d237bd3ecd4cdc58e5eca4f117e345f286bf2d475071bd07ef6b1a50f",
    "signature": "0xff0a9c86c80ab59a4fc0cf16a92d400da1104ebf9e2c9c2aa2a300384363fdbd22a2e5c59b95f1a4380a656e4d34fb9284ff050f8a258c626f41933b961a34f41c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}