{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1320709",
    "entityType": "User",
    "nonce": "0xb934db36071732a1e978a1bbbeb972b20c5302984272a4bf2e91008a5dc55358",
    "signature": "0x23705ca92bb7db36a4b4e79f1337d807ec37dcc938a262cdc6773bd9f9a838301f3c3e7c3f9f94cc6584f129775b249184bb44af4facd3a6f8ed3846510f3aea1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}