{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd8e56a155698cccc74b34ef71ac5be400bd6be6b46608e5c425944d64737d8c7",
    "signature": "0xdee844cce07d77eb4528c964b0cdadea27fcc0ef92c8e2bb90ee959a2a0b284a2a58367b4bec89888d595f05c195bb80a6dc515bcafa61145c009f304e4107ae1b",
    "signer": "0x7495ffcEA4B233ca42224EDe45fA94bc245920C2",
    "userId": "313045689"
  }
}