{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "62723",
    "entityType": "User",
    "nonce": "0x8db6c2e6002807f737d2cde40d50f3a4568a6fed25a242f07d987ae4635c0318",
    "signature": "0xb5512d0271a502f2497e274a6d18c8fff61e6bb821ddcbffbde824ffea21902b3541bf0ed2cbb4441cd3965f91edbe6ca9a159a5a6e3452c26a020f01834c1b11c",
    "signer": "0x16BE3cc7Ee03C75AD10a94fb7234B045D351825c",
    "userId": "66529124"
  }
}