{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "211719",
    "entityType": "User",
    "nonce": "0xb053e7299186d0c180ca102afd87b6fb14bef80338b015952d79705c4ce506bf",
    "signature": "0x5be14f53bce48c5fb42a76d7a3705129e940a57023a93da1ef7c792f56f5b3014a0c1c3fe50c041eaa79651d9d5c3c89c5bce76becc1ded601b6ce9e7979542c1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}