{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0x0b901a192f5302715fc2e5e6715bafd0babbd17ac208eb1ceee5e70410d06cdc",
    "signature": "0x93eda4c51b428647e5e1720c01e38513d9da2bf0e3162444778c25c043b502656e2036819cd41c44d9c4e34e8992996b17aead564102c640e70a8c1b0581b1b51c",
    "signer": "0xefF7C914e8cb6F6d98EB6DD97a36437CcD58E5c5",
    "userId": "797035469"
  }
}