{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "15169",
    "entityType": "User",
    "nonce": "0x9578542a28a902b945a00e033970c4e74f7394714d697f09abd5b157eb58d967",
    "signature": "0x897a60117ceff7d491732f1b74328b44a03a50e8542ffdc8b90886c4932426bd575f544abc9537fed313fa1ab06e9aa7a8b8a101519f40a5f6d64ff5c1b2d2a51c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}