{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981716494",
    "entityType": "User",
    "nonce": "0x1da401188cbc5ce7ce9038870959ba164327ce000cfddaf437b0db483889189b",
    "signature": "0x5c1c892894f9bfbf9a0f706e5b8417e71dda9eee491c31e4d4176168fa8cef48771e28f8239c838d21a8ca6405972c1ec7fb478c69a40824221553b885db26bb1b",
    "signer": "0x19EDB4c1a8740c323f6e57B80F3422C01875289e",
    "userId": "390804"
  }
}