{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x71d966d4de19c6894a9e6fe59de5e8c43bdca93ccc6067129739c9669599678e",
    "signature": "0x232c8bbd0cec4935600d837743375b4f3e28c399c62816d67bbc75f94c7f93514643a0a471b7cf4e6c14c74be92771c2509ea6a48991285319a8924e497aa2dc1c",
    "signer": "0x48C916EBe05F66b7c1c7B11e25cEFD3976d108AB",
    "userId": "865998567"
  }
}