{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17527",
    "entityType": "User",
    "nonce": "0x9e9e5cfb07d6fadff4ad441d6939b872cde736a2d5b2e22ab4f79d7d1d83830f",
    "signature": "0x597cde2fa2f5bb6951249c6bb7cbedf951c878ae9a698843a78b93e48c4ce41c686c89d53f9483de4a242fd728c3670e29154dfa6c354dbf8c764067b21745ed1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}