{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf72525736a262b6c2f06e2b71330537cd63e2e78e3621f5d86f362dadb17c197",
    "signature": "0x62554df87de1834e6a8815e1416158e08bc949b9a5e28a6cfd521188c36d0d7a3d8f99edfb8dfa05e9c93002e7f1c43050b12217952fefa6eb8dfec89a551c541c",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}