{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9191e60cbbc8394c8805535afe4c2a96f912500788ec8f90b5ec327b90b0b59d",
    "signature": "0x0e2a8801080b74a4620e793547bcc1fb806ff29e24a063ce2fe8820ce0b1d9d20d0d3c9386c28fcb5f0e8945fd3d3b2abfd3cff6f1a117196b8531b2da4ac24f1c",
    "signer": "0x59765D59B49eA1ed8661d6aFED8D1EF9deb44af8",
    "userId": "644365875"
  }
}