{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "937107046",
    "entityType": "User",
    "nonce": "0x474ee908d4d5121f154f64ec7c6bdd53d83ba2616eb5019e5793beaac6f3abb8",
    "signature": "0xabae5fbc61352fd3243f52f12ce8fd1f23ebba60b32e3f151eb71afab79f2c2463abb6d4a6af2c13fbc3ba75e7e39f0d83327102b6f56c67511dcde85295b5dd1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}