{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "53444",
    "entityType": "User",
    "nonce": "0x5add5123c1146c69280e2ef07d71aaf26b18c0a233d1c13f1d16b259c56f2ee5",
    "signature": "0x90420be35014c77d7dc6ab091cb3a511e9281486a68a26922d2068525529f614123e909f72c313528c0c3088f6fab96e7ce9b30d39dc8582b4c0e87db91e251a1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}