{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "943956503",
    "entityType": "User",
    "nonce": "0x3882d75e992cc363d0784a2b72a14fba54ec6b7313b18e9cb0b31523b41dde42",
    "signature": "0x33f9011fe9d04255426c185ccb09bbf5a551666895a5ed6f9bc3177a7f8d45f03022e2d3aa7f9b5d028788e20e4553c2bf4931f87e9cc02952411d649398206d1c",
    "signer": "0x742Fff9be20F80Ce7285c8Ab12B9018Ef3Cf14F0",
    "userId": "111467392"
  }
}