{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "16561",
    "entityType": "User",
    "nonce": "0x1248df06b6f1f6d245bf8d7f01244475027544e55a2605abc1dacaa8b06c0b50",
    "signature": "0x8f345286279b481bddf234862a375ed2645ed23a36b04ceaa9216cf5ecb1ef675fbbd89084107d410524dd1e1ec90d9d84545078efbaa70cfc5b10e12c4c58111c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}