{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "679513519",
    "entityType": "User",
    "nonce": "0x05f2644fd7538e08a767a51f128faaab0e3f90220ddd17e2ce68bed99740038b",
    "signature": "0xb9ac72f69702050999f1616eaaac275bfcc1daf9b587ddf5a418a385ca81857205d84793d9c057ee9e1641efee12dee30711e1510302b5d2fd3da8cb6a1f03bb1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}