{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81238",
    "entityType": "User",
    "nonce": "0x66570011bea030b6bb70938a4c37778cb8b88901151c7f2456214a94f882b488",
    "signature": "0x5a3886646a6d45f264888e594f75129aa8895bb86b25714ead33dc420e569b417f2d3be4d4efe31d6e5149b0c45cf55fae8237a27aafdd7edf3d106b5a6a6aad1b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}