{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "138345",
    "entityType": "User",
    "nonce": "0x98a269c697be79bc8616701dfb994b2b49d118bf8117e8165207cb21212c9c91",
    "signature": "0xfd66351bb45c69a0707deea63dd6c85977687bfc44513d7b04e1bbaf778c785e60f52a07c1682cf091e5d6fc21f17024d75bb545cc4d87e5d827cf23e6de2e501c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}