{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9f1f0777733ab3113e526186605fe8834aa88851697f721b4427f9c7cd3cdc00",
    "signature": "0xfb551a96916ca741fc8abcdcca713705256c0c4fb835541f23b823f0463a965e3037ef4fbad67e62c900e7669934a241b546c1b39aafbdb5a444bde4cf5467dc1c",
    "signer": "0x108a3298004e40A9558820713C7BBfc4433C8DBc",
    "userId": "816748713"
  }
}