{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcbb638d44286217526d1ec28330064e3d062a0e7c738a7aec5977018fa38c328",
    "signature": "0x0248532a73a1313398ea4155927a7691e359557e808b590c3e8d5eb6886c18ee07ea729a69fae489fa4f1e073aac4466b0bb88572f1cff8e42c2b74cc71c51fb1c",
    "signer": "0x1eD5daf6257802F2F358696D4Cb0Ff78743A90f7",
    "userId": "11328066"
  }
}