{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1f6a3902a0f24b7484a707aeb4e711ceae82b8563fa602083917967d6b53f88d",
    "signature": "0x9f33a92811fa8cda4b2478d9acbb3a31b9844b86a9ce88c0654bc1ab3e8757896e609527d1141f912ca83af27be9d57b5891470ff0e52fd45f9f0700880f09b81c",
    "signer": "0x2BE5c7eBf6986c773aab383B7422a46Da4157539",
    "userId": "384760159"
  }
}