{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "496394700",
    "entityType": "User",
    "nonce": "0x4fadfb5c3454b6f4a5c771c244cb3b7344cd5a0a3645b565bc104331ab7c0ef2",
    "signature": "0x0001d5ffd0ef3889348ddbcf1947a10fffc50d69bd72f186d5865214892e45b60e4f3f5f5befcfa2456b79dad35823d360ccd917da448e4bbebd083d4a20b9561b",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}