{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "384839359",
    "entityType": "User",
    "nonce": "0xce4b612f52bfde0f784d6495e36eb584b19335bae2ecdf5f820f30bc16db8bce",
    "signature": "0x1a00ace4225eefbe5799a67dac5eb36376079ccaef4e534cad238171e37922221585a6d9acc6531c20b8f3038be8e121b8d27ff7bbc98bec2a2af26a0acedb501c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}