{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0xf220bede90ff6b906e8be9f800e3c9185a8d83931d95034d4a1d3f8ade3c8a88",
    "signature": "0x0503bd3e4b8c698e248d26eda5c5e47f459a1dc8e116bcea497103b1fcc1031a07da2269aa3a83b97667c0839b9b5b20b1548db68edf329659deafbd37f3f87d1c",
    "signer": "0x5f002eD639b9263aAEdEE0aB936DE9F51c764878",
    "userId": "131017"
  }
}