{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5559",
    "entityType": "User",
    "nonce": "0x3e6f0cf89521bd9d3779c4e274fefd1db0bfa2873384f9c140436cd645925bc9",
    "signature": "0x8d3c4b112eaa14b0c9fe003d2538983c0717e2612d7e04e1024c444852e8a76d4e0ae57c37850cc6a6706d9659fc22116c62313d46b8ff48bd9e4ac1267695b21c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}