{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "77755",
    "entityType": "User",
    "nonce": "0x6b2723484e161156c69c50cf9f417d99183068cea5e9fb64632cace37869fb6f",
    "signature": "0xdf193bdef7ce3a70d37195f9f949b1729f6a616a02fb0161ffaa9e6269ea4ebb12fe00da3a83923ab9e73169409fc2f7f78ee7e4ac481c7c7c6ed0c333ff45251b",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}