{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4966",
    "entityType": "User",
    "nonce": "0x2fd3188bcd36c5882de591d32aa11c54e3e70a1d4e928ff160c2cdf058b48277",
    "signature": "0x13278fe1c9db28cabd9d3c286792108c72145c7de91a63197b6c2cf2ec65216474e740a02d61ce0ee76580c63b07ccac6102d7390b3fd266cdefe0ca71c1934d1b",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}