{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1320741",
    "entityType": "User",
    "nonce": "0x29657359c2b03a8d13dd8987d526581ef2336930a0cdb197332449349d07d854",
    "signature": "0x499a90ad7741fb0140e5a6fd1b4eb320e4f8c0a3306730d1ade7b418597b0e454fcb428ccb605fbeec9ee86d0ad279ecaa55caa2021e64a8793767d71d2b754d1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}