{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0xe506c0584610819cab8037e7e60c98a2936713136d117502ed4a936cffeed0ae",
    "signature": "0xa929be250f7c6b1c81a273a3d7073acc07ff7cb4a5d1b094dff445480b22ef3d2d5b409104308f24506892d31f79c2e35579e894ffedc50736f9c12f772712b21c",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}