{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136781",
    "entityType": "User",
    "nonce": "0x96839de89f45c1c99e4ec8436f6926f3e676392bcd4cdada00beb44b04b2ec69",
    "signature": "0xdb79f15a2c4d5ad0b9d473609b8df1c8783c8d3e6b04c2add5d89b4dc5b4841e7a7d5d2a5246b5b9640cf5c6c13ec640f5652c28aee9e2ab29b1fd42133777db1c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}