{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90731",
    "entityType": "User",
    "nonce": "0xc0fde54e49e89dfa7083032b430cab61b532da18010e823740a97df57a1270b3",
    "signature": "0x16ea0cf591855b354a5f63d560b0cb12c94b4add20199b7bc2ee4747f1efc8b93e702d54502282f036698bedabc893e39891a6ef84207e4ce384076cc772317f1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}