{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xda077892c286f5b19b1833187246428a6cf24ed82978d76f4230d83c40380a6d",
    "signature": "0x6e3880923dfa119ac93b74da957a1bf1f283868b561c72c69cca3550ca239af440c7c13475d2b6784571eca68a5d95cb73b756f1ee33406394abe7807db7c6bd1b",
    "signer": "0xAF22D6Ec407eBF7F4904b75456121740Fb3a4130",
    "userId": "298164320"
  }
}