{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143226702",
    "entityType": "User",
    "nonce": "0xbce5437a8a91820b445b45d5aae86028e3de49679833589d561371197b18a6f9",
    "signature": "0x0976dfaadf60081abd58d419d7c2ae22da1aae411af1fae1b36b3212f132b8684e28e58cebbb14a4c48c90da623e52cf26301a5152a132f6b44b39e4f0183f181c",
    "signer": "0x7451Cf52e883bc4483b88591c194dc3942E7F191",
    "userId": "584186978"
  }
}