{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "580720856",
    "entityType": "User",
    "nonce": "0x619960a6055afa4af614c36575bf63d5f114a67cd7ab57157da057091fb8308b",
    "signature": "0xbbcf8d1fc068b59b95f8c5998de788a5454fb73ce07d106a13c93cee27bfd065294b8e3f4c2c094b0ca79d4d3e024792b1d3583046b8f751ce41e3f8ecd5c4341b",
    "signer": "0x79112Ea36625dFA8dd996c11847B45e2C8C1F54a",
    "userId": "296453887"
  }
}