{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "118123141",
    "entityType": "User",
    "nonce": "0xe250c9a0d90c767d3bb92a20c118a017ca93f8247de90a5c3f6fd321a2598fad",
    "signature": "0x76a1dddbf9e24632b19ebe4c278f2345cf490d3d420b1fd8dc551dceaf8ff348268bc501e47011d92143198bb4b85be91508f28fe5fd9b108bbb0e8162131a891c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}