{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43430",
    "entityType": "User",
    "nonce": "0x1d5255d028d5a482cac3de96bfa283922193f61ab569ed9166a482c76aaaa6e5",
    "signature": "0xf30fa4ecb844ef925b0e074351a06c7f7bef6858c8d50638f9a7ddfa1de4aa5e07645483aa0881e4fd92070f446385db8ba1b67b8a0239c8f31aec1e9523aad71b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}