{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1264",
    "entityType": "User",
    "nonce": "0xf7334e6e80ad2e456db6c08154bed8bf66a47582a91dc6b14a4cf0f5a1986d1f",
    "signature": "0xc4737d5d8d98c627d5839c9095786e4ba9f16fd229a9c83caf7dce5df33a9c5d581500ae527e55771aaffc8b1e8a7f5758f7c808ad1c05ee89e44b20d9071b6d1c",
    "signer": "0x8fb06be829c5718Bb968af1525d910B795617ac0",
    "userId": "950478625"
  }
}