{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38838",
    "entityType": "User",
    "nonce": "0xcf0d7c215d71b71dec7eb2a1eab3aa5a86957ec758be9e466ac64160b6e36030",
    "signature": "0x1f943ed390e15da97118c22b4bc957a2c0d6190015b1cd811b421d84888437351e3cad71f527446e25999fca1edd269d654705f2caf5a5b836d361677577a6e11b",
    "signer": "0xeC1219421eB7c3f9Ae2846E885f45BDb4509ccF8",
    "userId": "892020777"
  }
}