{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "230757098",
    "entityType": "User",
    "nonce": "0xaa19d269508f02fabfc8a2557fd3bf25c2572e5db14adca760f78a2030bb3a72",
    "signature": "0x1044f955a74ada29d54f80cfbc9d29855fedc2c1b9245dc51d72d0ab10b1760f04cacee1d46a06c264f600070eb2b490f1a2755cf92ebbf2c8dff2968e1006cc1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}