{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8183d011401d3f6e1814d764718f7457c4497198245f7a7108f0a8c1124184a1",
    "signature": "0xa9b7fd17dcff46c74b5be27b27f69ce206a3ad87189640d4fb2e3be49e297f7a7a0c58d38df62fca70ae73c8557ad1ad7a5b82068b4d5d04c193b4200047e8841c",
    "signer": "0x6Fa6d440e86a96aE9f12263c1b1383ADaD405a77",
    "userId": "665688505"
  }
}