{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "862512182",
    "entityType": "User",
    "nonce": "0xa7354ea3213eebb1ef1663150028ee112bfa9c3c1c320ae70beba8a82d438d5e",
    "signature": "0xdbe8948e2bb4776ae8fb81a6e4033064b63e05d7ef2e44ba91847cf4279c77fa568c663005241ff8689c54ab1ed3530a2b1bef0c7f76d64aa608a3237260e3881c",
    "signer": "0x4a4E686a6442e2Fc2495a7d4363B25c583Ea3c3a",
    "userId": "34815"
  }
}