{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbfdff95552736f0c7f7b57a36511e9fb9b1ff64dd232d920db274b82ad137b92",
    "signature": "0x70e805e9c5abfbe79b7b7c3bb395923e922617839d6b356d4fd0e9646acb9e85273e4d88367f8c894e6b4aca92c4460558444b6fab24d67da25b34c4ad037aca1c",
    "signer": "0xD116d62A62102C964251ab3Ff2C86195BED0C14a",
    "userId": "549192313"
  }
}