{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "893658192",
    "entityType": "User",
    "nonce": "0x87ed099457b14bdc816cfbd9a682c4f0a0d8ad53c888c210d7e1afd3c9710538",
    "signature": "0xc062dc674cad0350a0d34c2838e81691be437214c9fde014b09011257360641a05755ae5f8c4464d1b2d01618b7e2c39ebe99794b45734c093b9e33ce51b53731b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}