{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120654",
    "entityType": "User",
    "nonce": "0x54b92e51e4e25dc24cce701ef755085cb5da5498dca75f50bb45ddaa95c41ca5",
    "signature": "0x19576b492dbfe3627a30b7699ea58ff9f7dcd23aa92e62e87505e9c9152c3b211075e024e8f23cd03fca369a110a38ab82eda4b44299aa412a1e4b7954366df51c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}