{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9a8411a925d5ce2e227b4b5136887cc508ffd13faf2a985ab9aa8abe4e2f6e91",
    "signature": "0x778ac50f9c8eda9d31265263699c90c2161728b2b88e1fd643e5c412c4cb00c50735031cc838fe358285a64bc8d86070488d7f96354ad05c8ae9538cf9c5f48f1c",
    "signer": "0xb5fcFAD74E220C4E3b779ABdA6D5Faa34F40c118",
    "userId": "317661283"
  }
}