{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13380",
    "entityType": "User",
    "nonce": "0xe64008d2009e25631e86401bae7bad89db7169604698ee4a5c02c29fcd55b6c4",
    "signature": "0xc8d733a9287f87f3580badde893778dec43e6750ffed4d1bb5c7e1b93687ef0c20d88aec7dfbd9734051bf63bd86b4134b4425c26d0e4a201ff69a6be4e4aeb11b",
    "signer": "0x88ad765B72fb060B3adbae1FA44A6C64722E1781",
    "userId": "236177"
  }
}