{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318559",
    "entityType": "User",
    "nonce": "0x20599e027e22058fd75959ac3af9bef5d89c8bed5c7697d1a0b5a26cc768b626",
    "signature": "0x4b238df2b696eebf2f642a58eccdc77b83f7b49c34aefe3e8ca0ddece0dd65146952a3342bb6483a572464f30fb866e8a8b839c4bf55b691da1159590c48935c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}