{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x56a9698aff74bc071c3f9fe8d7f78102e1b154a965cf3d9755d8c84876af533d",
    "signature": "0x806d951bdc8218f05f24e007b64f6c79461d2efe4ad6fdb8cd76ff14d726014857fd00e910491fbd001b94555c8fd5dc867b2aa80496c4ee3cecb00971be69c71b",
    "signer": "0x2B2Fa3917FfAD41AF5C5b240e4cbaE553dBb7d81",
    "userId": "836118450"
  }
}