{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3a1ba2b3d7dde5b9e62dbe9d3d7f02c99e6a5946337d82e36f76643e7a77f0f7",
    "signature": "0xf27f664698f2a9a67787f82220307f1c42c06a105545cc60d10be621c3b481374b0b527f155c1e051684a270dd01afa3fc13c37c26673cd58a7ba31ab0eb51361b",
    "signer": "0x45eb88d5334CAc7f2D1A762926C34FECCA6D69Ed",
    "userId": "442984539"
  }
}