{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57574573",
    "entityType": "User",
    "nonce": "0xba49a404575d2c862788c9692d2b0433fd64ca4def3adf4f2f1e906ca0ba897d",
    "signature": "0xe7feaded7d591b0c464fdb1895cb5dcb8ec2709f7d6571c613c579c5c968212115d325514aaf518bc2c49b335adc2ad025501b51c656a80ccf41fcb88c076b971c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}