{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "75818",
    "entityType": "User",
    "nonce": "0xb9c06ece15adee9fb4e8ce30273d7a38e6b3099a8c49f216e1f2f8acac10a657",
    "signature": "0x9e6df5b5910c3089b74b7d561237a7448b8316da5d0ed82eb241bb7e34f15b7b774e4fedd6f027d0b0f3fe78b4b86b9b29f1e2701f94a02cc4cf7ab859ceb7a01c",
    "signer": "0x7425EdbFdF528603A88c658f4cf8B1396a8a77F5",
    "userId": "406225571"
  }
}