{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1930653",
    "entityType": "User",
    "nonce": "0xef888ea017e74caf2b7c2fc5e2318a67724b3576c332dbe0859db99e06cb3806",
    "signature": "0x21a6d1eb4c1c81a1d7a1b144e4a33bcd5aa0fd00dfab2a85576b4f70684ab72a5bed816c2767b7700caa9b0d1e9a9e94a82d87294b7ac113ff60d7ab2c769ce51b",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}