{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe36dc2040e7c5045fcb22c19343c9bc121c3010d3b147829a8e966ae08eb5be7",
    "signature": "0xc34aa7348c94f395c064725cc92c74040b5127a4225808ca944f95c54ea369a824c6b7aa0ca22fe438aca827d6f14f28682af384786fc36ebad1c679b2adc4331c",
    "signer": "0x38EFfF3117d01BF2DC25F4340cDD7f743C4ea789",
    "userId": "545523635"
  }
}