{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x196755fcec13af66bfc9a47aae068de4c0a2de6ff368d1acfbb359cad304acf9",
    "signature": "0xbea7d1028370e6b32297c2be3462fea49f7c877eba9e7c9bea149c4f5414d4d8615020519bb4c671625d79b84b3de9ff7a69868a1517a47fd756e518f92b3ce11b",
    "signer": "0x71B8F71375dA14De1773Bc61B714A8467A9c1711",
    "userId": "72389933"
  }
}