{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "142974",
    "entityType": "User",
    "nonce": "0x447b51d409b02c8971cfbfcf1524193cb059187fb29ecdd491b716ed481eea2d",
    "signature": "0x52e25953580e4f2122f3e3c74728a7cfd083a6efd3d6ccf233ba1e855f235c796a29345ea339677469f67a40e3a1889ceafb4c56bb7dabe77f03e452d0ad14f31c",
    "signer": "0xAaC77705f5f6bd787D8581c36Ddaf7c0c7AE3370",
    "userId": "827420993"
  }
}