{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "84072274",
    "entityType": "User",
    "nonce": "0x9fdf0f4bf9a876413012b5657741a45b1f81161ff2bf7252cf4b8249185da3cc",
    "signature": "0x9ccc6f1c7685cb6139a2b66df7c7e245961cd15c3c421f1a4aefb5aa0c68f96943457b534baf32646e915a73ff5fd98542d0b297a318410b499192baa0655f9a1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}