{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "214578",
    "entityType": "User",
    "nonce": "0x1b452a079e3eb61daf2c86c6480b6e6d5ed0a4ae240f8a1b5a93ac808b1e0c6c",
    "signature": "0x6c97f5f43c2605e3f44a2af33c131b0618c64a10d2309e819f5956179c5158d5368dd575b28b031d58c874af33c260f3aa61244a676023381dea867f6da1be8f1b",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}