{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x2aef434e190a150f2b65e7ab18f4cd34c7416dd70cd702c748b908314ae16be0",
    "signature": "0xcc7e92ca6c06dacc7a9eb4baa79da0a40a86a552f4a807f62e52bbabdcfe86a44c0dedb49e617575b635acf46ebb17a79c1ab562844bb5f398552663015fc3651c",
    "signer": "0xa603e9487Ed7C3C62E8acb85f8f32acFf5d6349b",
    "userId": "278135553"
  }
}