{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x57a05495b6184a60b65fabca737f123d7f1ee8e28fbcbac19ee1034c1c3b3dbc",
    "signature": "0xb62cc0b7583297d23f71071aab2c220c0869d174251d56f151f0111a557b4c6f6e6e36832dc85b4d8cc249266611f09dda949fd55ed60b6b1dee12adc8d0039d1c",
    "signer": "0x650114c06c1D3F8E6690f928A554F790FD7886D5",
    "userId": "955890559"
  }
}