{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x99d4a1fb817fd0035149877813b21e4c42b5096ba4aa9e87f392158050c2be61",
    "signature": "0x976284fd1c25416a2ea0e87d195a10c80d0d2cc6ed8fd23dc6c4d0bcd2a91c717e647bec454e5346628cc4602158f82afc7ea0bb7deb5910939479fb06b116e41c",
    "signer": "0x33892C91AF7a2aA34ff26f688557426a58D8c18a",
    "userId": "873346349"
  }
}