{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735480",
    "entityType": "User",
    "nonce": "0x8ecbeb784e0c2e9940e3cb00eafe13849cce8e20561bdabe6d5525e1064fa3e4",
    "signature": "0x4a24254c924b18a1ba82e307a14220d1458d7a5d83526749683bb3c79fac06892dea4a763de8bb89743d22ac143c7edba1095c6738dd1d18b9229962936835b41b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}