{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393111",
    "entityType": "User",
    "nonce": "0x983a3a53d94e8fea7cd986db7901da2d916e50efd48963d2257fc61795110af9",
    "signature": "0xdc82afed272c4c5ca91c0ac338b75276ccadadc277a97957bffc93efd33a3a0c487f0b4165bb0f2d109c939f2f08b8cd17b3e57e0d22f79f9618253323336dff1c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}