{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325935",
    "entityType": "User",
    "nonce": "0xbfaa4902ed3015f20065440c74189e4a839bd58d2254b800774d81068565cb6f",
    "signature": "0xe970ce2a7787615dfd97903bd89527f142c227b526daf2b65f20dec2cdcc77574613d8347da75cbe8cb1f3932613a677064bc491288b7603a8cab26525a731821c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}