{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0x946dd1f313ab8d94bb6f97a2de92185dc2da00b9b3d4c11aab6bbf94c32cc533",
    "signature": "0x6676a96f18214208224f9bccdd3adb75183c37a06673793e9aa85327ebc1bf7017be8b2a19539ae8feaeb38bccc3a47237782a2e7dfae21672a42a5795a966a51c",
    "signer": "0xe8BAaf9d67869BFe993951C60524b67BC331bac9",
    "userId": "75683930"
  }
}