{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7c2feffad6b917d48151adfe91b83d9931a9604d2ed90ea0352c7f79f22206d9",
    "signature": "0xc962c0926980e4bae2fd17889a04e769f7ff138ca453cb0e79700827b19ce9ab0462d52062f89a8244e31da672b471797dd33369f8875514f4a2206aee6615fe1c",
    "signer": "0xfeed2e3af8F548DD8eAF233303cb6AB4Ae9D2c20",
    "userId": "327590204"
  }
}