{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "587300501",
    "entityType": "User",
    "nonce": "0x47ba7c97a1f4d9d52d5d5b6a99e6893ca9c4ec88a759e5b205f7be3c1d308d92",
    "signature": "0x04d49c7edc72e9aea0af12270069618dc8173bb2605277287c751cece69b170960ef121641463e80a0c3cc11db175b54d0cddf328c1b9d25b4a2db4541a968ab1b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}