{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "772777229",
    "entityType": "User",
    "nonce": "0xadc30fb6c79e6561be2f1b3876a9108c3963adfcc2f4cdf93c6815f0e2212953",
    "signature": "0xf7d2814cf438690e5f125a8f520fb561af7b6141355ba7b8276f2453a61b7d8353a3693df730693a05754f5afde2788a020ce5aa757bf191be021c44c1a7869d1b",
    "signer": "0x0d0E0D19797534AEF52736C60B52793E9f88e24F",
    "userId": "603294620"
  }
}