{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15873",
    "entityType": "User",
    "nonce": "0xce4bf9a8639dadb82c5facb75b01d508f4b46d81677f94440e65b8e2e660eb8d",
    "signature": "0x4b1e9e28ff898e118b9d522175e9269873e74800fb953373169c346f6361acf842c672490e2a8f6923ba55d756f6fb34b1ef5febae1ecfc2ec1ad804576bd12b1c",
    "signer": "0x6754A920da1003d0904BdFf228A6E217Cd12bF5E",
    "userId": "105562689"
  }
}