{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "232877",
    "entityType": "User",
    "nonce": "0x1d89271b454e124b6bcfe5e90ebb30bd79c1a5ff1188f31d8f2b623548f0b774",
    "signature": "0x5e1ae1e2c54577742961d24ba2c284bd876f18ee62ecb3cf361efe080c49fc6c61ada4115db5341ebfcd369afe2b92e616e4a97318a3583092df7bfb705059b41b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}