{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "718015741",
    "entityType": "User",
    "nonce": "0xa5d571fb47427010cb4c467334c3d80d52619d63e8290fbc53456f82f6622417",
    "signature": "0xe5b8f737ee2f97421a01857461dd56ac88c3168da50879a9b3d91e6ae6f46a9b65aea4b35c768b0187f328702838bc16dd350b4f80fa89f71a18e70dd98158271b",
    "signer": "0xAaC77705f5f6bd787D8581c36Ddaf7c0c7AE3370",
    "userId": "827420993"
  }
}