{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1715129",
    "entityType": "User",
    "nonce": "0xb3dbef26fc91613e96d08392504bc96378305f9894abd8d633aaf5f6498c3c5f",
    "signature": "0xd2d457a0151bbbfe4a49e602b2537df410c6d68f7563e214afe516c5ed92aee92a93ebb92955237fa6871df7987029518cd3427a4c898ab80006dcbc48a5f9031c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}