{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6d0c3d46405282c21d82e55df98361f97b12619f6be175a27cda4eb19743ca43",
    "signature": "0x78048f870ea8c718804071e544be1bbc5414fef9137ebe389216e22bf30244ff53d5dc672606b6ef420965c5108521d787a1c0d94572b3db8528524439fddf951c",
    "signer": "0x20535D7624382E7F195D0dB88bf0330b5969415d",
    "userId": "304953428"
  }
}