{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1011145",
    "entityType": "User",
    "nonce": "0x83dd5e781147f72b153c7ef6e8e9cadab7552f910b5dee4bafa57ae9419f4f64",
    "signature": "0x74dea4c3f41ca39208706271b905201d347217cfe3b42f3c24c69f68468778aa6c8a6ae978e4636337633dbcc47e829edf3f9dc5ed498a2fa98e51f01c347f471c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}