{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x32b3bb43583a635e14ab998616d47ee95e03df49c51a8f67b97bfe389c28123e",
    "signature": "0x039ba593f849e6dc041214f982d759da0ed54ab728c1798266afc1d9afe54e461bf5c4ae6d8e0449ed5508576b8e483a734e67649b88e3987f077a9ecfd83e741c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}