{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0x0f457bfbdd16c034ca890b56e51b58272c0cca2d4b2811852b6494b86865568f",
    "signature": "0x1eaf594b2f3808d88040abd1d2496440a5fb3afc1fcf9b774572baf5f48a14116b8c8ef760a47f810c174702ac037bf55db68031db5b80a6e89597e535c1d2931c",
    "signer": "0xDe6128EEdBB4d15D391871267E286E878C7011B6",
    "userId": "144906061"
  }
}