{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540529323",
    "entityType": "User",
    "nonce": "0x7da9922f277627f14796ef5199af2f96ce13fb0171163b888d275f9908b5a1d4",
    "signature": "0x29cad0ecea139259350d390938df2ce1d290dff0a96c316a7220aca4369a2dc0498fccd49ee351ba80b692d68e1e2507c5a69353d1571028508866f3ce20a6521c",
    "signer": "0xf43B93bEA26D4fdE1EcCcBCACa587d6edF8bA4f1",
    "userId": "93242260"
  }
}