{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "331929",
    "entityType": "User",
    "nonce": "0x9ec7eb6f6378dbf5ba3bc5dbf87cfe923bc4df5d40726e94a021fa55e719149f",
    "signature": "0x7bdd1856bc51f391a5c8336c885f9273c6c9bff5da7145e7cc13207836617f546075248b422f1509381a94f43c071b83eb57b832f164ce40fa5de9260ea3f6551c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}