{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x89b4c1f8781fd896dc5c14dd04df3151abd292e85691e2f183d10d1836c9bc43",
    "signature": "0xee7e1c476b21bcfbfe1ef02152bee0c34d5e1a6fbf0c82ae2ba345c6d9dc765f2532a869b48dea553f64fdd9ef1ad1df18fbcc79e526dbf10eaced4a077c5dce1c",
    "signer": "0xd556c9fe2A1baa2520F571cE4facc0897109a045",
    "userId": "945306948"
  }
}