{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa869513be07432187ea84588f3e6bad0e989270ba6e902597180fe1a945eb29c",
    "signature": "0xc845b9cd01983ce2abef88d2702813f545b450da807aa2982137dc24698511de554131bf32712f7b494a93df5bd6f700a95851ceaebe17216cadad847b3249aa1b",
    "signer": "0x7eE4daFb79211fF2CB92FFa5a0C6fdf8DebA0695",
    "userId": "228936197"
  }
}