{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51880",
    "entityType": "User",
    "nonce": "0xd6c69b80e7b9ecd56dab7e807f0dab4ef6cbf773d1e739844567369ec2518738",
    "signature": "0x4e83cef338d66ff92897bf923e504d84e4eb5d332d7eb0d75bd518abf8317b20389a2c4e83a8b2940e178b2af606acf69dec4e9bc95032f543f55f9e4e120b0e1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}