{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330431",
    "entityType": "User",
    "nonce": "0xb137a08999662880506c64aec39145e68bdf77972ac2748cc4d9dae7b94dab1f",
    "signature": "0x3ceda8f7854722e9f0197ac0918c5378948c1d9a236a42eec7f7301635bf2b950bd302658472921ed6fc393d806d38efe68b5057c3561f6836e8f8c2c30e9b881b",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}