{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x949c3576ddbb92dad0e7ece3c4d82d981590d2f67d6f55f08de036a0597b89b3",
    "signature": "0x118ffb469adb2a819eacfc01b7692014c83dadeb1e23c74899696811f05a0b0427989c1833f4536429bc35175077dd98e1ddc1c335b44ff73a5adbf145fb51381b",
    "signer": "0x946F0aCd9CD0376925ba9Adb8da9e219f86b8AF3",
    "userId": "78848634"
  }
}