{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "451267",
    "entityType": "User",
    "nonce": "0x772f9ae0daf7674ccb535ab01c1fa09e922efb0e4c4d6bffb88d47266b712d81",
    "signature": "0x70e7362885c338bbb73f3327e288aefe4d379ab7c25c0b5a7051927318194e4e0ad44d705e787e61f56fc49bf11c9cb3aed951be8319e79988dac6b58eeb4a2f1b",
    "signer": "0x0a5148A3f132E6696c1Cd3FDA8465fC5fF17d3D2",
    "userId": "803288761"
  }
}