{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "274010868",
    "entityType": "User",
    "nonce": "0xffea70d5058b19e009bf8ae58818c4a8a5b032951152396b62b8f6b21c2908c8",
    "signature": "0x1c3d85764eb709a69f03305eec8cdc27372c516f076edf8d49bcc7e4d1f5d1e5564c8fa7ee0c9365a954c2cde0a3b203f7261e4ae8fece81975c816b2fc734ea1c",
    "signer": "0xD0f51E232A92DDc965FB1FE51d04200D15d10fc1",
    "userId": "536634479"
  }
}