{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x654b99c8d8d2c07880d0dfe444e353f310c04c6a8167f7f2d6f9cae6580afc6b",
    "signature": "0x2c07acf1f653f3767722c7b352a6fd243adccda75dcd50981ea96a817c2047e45c68807302e29ca2ae71ee28fa540ab548db6f41d411da22543e70b12fcbbd621c",
    "signer": "0x7deF33625A39F0c82e548F69aa14Db905C001F9B",
    "userId": "259513372"
  }
}