{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50672",
    "entityType": "User",
    "nonce": "0x177cefb9ad833182c9ae9ea16d227b5401187eeee7ca4b7e406041e6fede0eea",
    "signature": "0x041473456c1debda0797fce587cef59f9a581ecce0def0d9dd5d059e34b74ffb184181b1cdf08db84968107be72a92830338a1c305b2ab653ced4e4bde6897bb1b",
    "signer": "0x594FDf069B8F803eE20CE92c1509071088CfBC77",
    "userId": "376200150"
  }
}