{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57081",
    "entityType": "User",
    "nonce": "0x769e9507ab6eb336f3f583ce9f0d9f895d8d8c2522586b2d5683cfb7e2693753",
    "signature": "0xe322449088e364a92ae1553123fe4d818882eb65b72c6f6f02435c70a9aadc5820df294ee17b4e0473131040d8f7f4275feeec4a4be38adc33c97bf6e1677b191b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}