{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc32e86cb2ad8dd7a1bd8eefb1ba112265f73cc878b4ad52e5d9e072474b634a7",
    "signature": "0x69f9377d12ce7f67fbccc1db1777f5059c4bf18b9ffd2cbceb7bf3e715dc87e439014d5053c9555356ab2d34140ccc190366883619492875a1ac47cd3eafc5be1c",
    "signer": "0xEc1F2DA7B666359aae17538740728b216750462f",
    "userId": "92821697"
  }
}