{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "186053207",
    "entityType": "User",
    "nonce": "0xc9de46a28642b2f4491457bd5e2b55e04a5b0315ded607b0cbbc261847da1877",
    "signature": "0xf81bd3d73a9c46bca2e07caa04b5bd7d80a45153adbeaa4faa9925f8d1aa33b16bf49ab51ef2d8d23af4cd5526d13fc7c9e65cb260066aa14a3c95ae733af9211c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}