{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x6274c360c6081cc05021bbb6d150a0f6752da4d49b9b0c43cca2e693357597b7",
    "signature": "0x1f808a4aa4c9f92123026654da83f361abe2362c9ba5dcc5895659287a079b357389053b1dd46a6f73f95760ac4705ab6dcd8bec8705c9d500d16a217e551e101c",
    "signer": "0xfBe6C68905E1f4002b74750003Abb1000eB9eB3F",
    "userId": "420884410"
  }
}