{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "312358",
    "entityType": "User",
    "nonce": "0x2566b760d153aab5359537f8e2307365e6a9e35ccac46bb39c430e31dbca2d4a",
    "signature": "0x2a4bfbd0d68fed9269ce77d09b04fa56e71fe35b9f82ce0d21b32b4a5fa6c5b616bbc9112fd685f956e92dc0c6a95886b1b81d180f848200778a410b210a07f91b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}