{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xbc5873ed8c88cb563804a0905922fea31cfdf2aeec528a11e956bcf604d3677c",
    "signature": "0x2e302a3013866786f47c7fa3de05410ecdc5aea9d59887719788f0906d1652a05c33b16a09e7e37de573d7326096d9ffbca33ef597c0c5d9cc505bcec60ba3421c",
    "signer": "0xC8a2D4De6500FfEb2FC29DF459E04c65307Ec114",
    "userId": "595622456"
  }
}