{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x60e423a2c28099af734177da1566e89c814a10c40ee765b7d9caf7bc3bbcfd35",
    "signature": "0x4c4f8eb2995c50bcb18e3fd1643a25cfb0d2d07dd61ff3a8b5266b9c9fe3a86b612ce001a0b37301a7554da7adede4ec6e801ba941754ff8c9f24bca14a0f1ad1b",
    "signer": "0x6EA7E7d30eD7f9423cBA29A32493E23A8a8080b4",
    "userId": "530236516"
  }
}