{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x5f365b183ca247d6559144c4b8609b64413dc685971b48bbe702ea6bf41c86f2",
    "signature": "0xf75ff5348e5551ee4d7c440b2475a99fd2906c0f595911fc2823df1ee9384c1037e8a2e10551efa20cf9d70442186250ab4b5e794a55ab847038f0307727587d1c",
    "signer": "0xf92227D1CE8426bD2A05c637f3E5D3582E1CEEde",
    "userId": "386569100"
  }
}