{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396534",
    "entityType": "User",
    "nonce": "0x9120a738a2e1a263a0d9f0ba887bc6d89b712e56367ee9924fd0e4c037a422b7",
    "signature": "0xbccb55bcb2444641c4575e06c2d309093ec50080df4cf6c8e982f5b716daa1c628d53dabc38aee341ac9dd37dcc5d1ecb255f86543e7ef376bb396eec5f2bd871c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}