{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4760",
    "entityType": "User",
    "nonce": "0x35479a3a372746dfac971035685c87f80c38c94ebb6d6187a0800e9f66246e78",
    "signature": "0xee7bc740dc8ef42e578d4612c843d439da247edb7a53e0bd00590486b173de4842f64221da6a603ba33d24311e02685afb3d66219988ced7c1839fe29a2c49941b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}