{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xf314f4efdc63639a1cf98123998d451b64b0d3cc2231ddeffd51350edd6593c0",
    "signature": "0x258093d253f510adb23a46fb361cba02bb0cbefc55af137415750ecf1465587606be3ecfeff61a9112422e46a3857b05f064d84fe7fcfbc6ab4245710290a17e1b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}