{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "288058",
    "entityType": "User",
    "nonce": "0x9b81b05af8ecd575f1978b855fece67abdeed064b401f3463ae54ff05d2690ba",
    "signature": "0x440f4dffd3c0dbd459f79263a9dd411ca7ea057f745b96c8c3fa8b18a9fac3f3195e0d87cdc7d437c2b1b2d6351370fb99e286709cc1c9b1115911fab89e83991c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}