{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1831424",
    "entityType": "User",
    "nonce": "0x8748642c6a01fde321195aa1ad22f1c21d5e10df5f46f3ed9716e2e420cac614",
    "signature": "0xdbb2acde21db07c1e62ba3ed18cf0af49391042aee1b4d151fa4af2b61b2018073f247f32a97979ae9e2bdf0867887c2370452b03ad2cae9dd9e6b27493bd0481b",
    "signer": "0xC75a276D0a36850045510B0483E737bCDd1F5E9b",
    "userId": "588125677"
  }
}