{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "609792603",
    "entityType": "User",
    "nonce": "0x98838cd850f303606d0d044fa614c770840f4683a9b83d4c60924917bdd22192",
    "signature": "0xfe87130230daefee8bc27510035508c9eaafe3e3a25dcaf5c27200a835469b113ece065061360c571f78207f04fdaf7c926d4f1e5b7bb44ef45b1df56dc91a481b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}