{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "28967",
    "entityType": "User",
    "nonce": "0x30da1df2bc9f66468fc1e150f821bc786c3b1c92f44d3bf6b7dc9c75ef2068e8",
    "signature": "0x5d3933e9c380e939e92fe5e2672461e746b3cd48c9dcaa265c08425466350fb0321da85e2f64471ead7384927d6f224b2259306e32c25c36f07f80244a530adb1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}