{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "37703",
    "entityType": "User",
    "nonce": "0xa884f546e4e5a57ce60ab1cdc1b7e7b48c28df70783a392c5a160cc48812d35d",
    "signature": "0x10d8abce57e73d036d3dc9209341348a498dd3ff17a6264a804b2706ba26853e3274b150df761dc6edb14cc3f079a4e9b900fe22f69eed0f0a784ee12c24bf481c",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}