{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175319",
    "entityType": "User",
    "nonce": "0x0cf4a7f525a7a03a8c642ab3a5366e29c9488fa0818c60372bb197a4ed9a1101",
    "signature": "0x1b2ec6026b37aee3a02752a49b1f42b52a3225d763f8b53d1472ce95c747abf1138ee1d48fab04361ef5e570a2dac306f38cc0d4463b4f0ffdeb414e5aca63e01c",
    "signer": "0xEba824e60AE7F4Dd3303f3881D36c4d4b9f1f4Be",
    "userId": "346741915"
  }
}