{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194645",
    "entityType": "User",
    "nonce": "0x58e6d2c43fed8f22e832a30076c0efc5dcc73f197586d0aba63af30f5c91b76b",
    "signature": "0x2e91c294e8937399c37cde0db280f61deb09f287b60bf6b6b3c125f7f47df8f04803c23d5fd49624e66a6cd665e98f4ce0cf54dd1394542cd88ef79ceaf181f51c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}