{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0xabab332cff2d52a79eccdeebca22f018312ea8fb0c154567f1056f2b3a0b80b4",
    "signature": "0xe1b4a05113c306045ea7b7f99ea56be337658bc730ce91c10cb122fce661e8b512928b488c776d717376ab768ad1a282e2ce48832dc2ace2fb6e5c59a6a301f31b",
    "signer": "0xF00da71d697794A82B3ce77129Ea59608d6A7B1c",
    "userId": "398231271"
  }
}