{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb14453d11e0baa4df892f1392babe975eb668d0aa6d004167c71ca316dda4e08",
    "signature": "0x5d892b601f56892ac4400a24e9505fc924ee320250feb3afcc482fa907fb59e649835574f41adf988e5544b752507ca087d0ba36de9d0bf6e698613aa9a278ae1c",
    "signer": "0x7094144C776594790B5E922D084562dB60549BD8",
    "userId": "602217700"
  }
}