{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "209261",
    "entityType": "User",
    "nonce": "0x03b554cca2c1822946c1db97ee40100f444a02707c1631d03ec0ae0b6272e599",
    "signature": "0x0f2aa218bc024a98cb93974508b87c8efa15404b3581db23ad4bb78d95c258582066886ae3bbfd3653166c3b4efee3ffe5b2aa3096bce331158d3f9de52c0d5f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}