{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x81f8b60c32a42da0e2bd0a9ad91af91dfaffaf39ac53b151972d3c562e0b90a0",
    "signature": "0x5d1f69551c46a414f051a1fe4a78b27fe110a93dff261940d8d41edb44fd278c310346bb192f7ea3309aa7456fa05a5aa6f5a324e381684f83fb53e597b80e5a1b",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}