{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "42340",
    "entityType": "User",
    "nonce": "0x00f27455d9bf7c111b590548a51423d813dbc77a1351f8f66ebb049b36262ff2",
    "signature": "0x69c5bbf4ca5cb6fe84a5351d8ae5f63eb8f622d6d4b1020e280bcbee58f6b5c35f76de20541cf4b39fa09c60337746bbb65e1075e2f601801b8d6e17e3e1b6951b",
    "signer": "0xCF37605ee4b144e8878B9A159031027881CBa2B4",
    "userId": "36669256"
  }
}