{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "551621134",
    "entityType": "User",
    "nonce": "0x9fc31b4d4f2c618cf403596ed286af6d0e95f74a182a3d75050553107b4a5850",
    "signature": "0xd0e49480fa2fbe8795a8e362ae4700396c542515dfd538ba7c7f1526c53e7814085f7323ba69503b8e38b1cfe217de7fb7bd26a2d3f77d95bdb11b5782d5140a1b",
    "signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
    "userId": "508263176"
  }
}