{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190351",
    "entityType": "User",
    "nonce": "0xb8a40bcded914fa1cba5fbb24418cbc25dbf9e438d3c44a0d0a040d7b8109a3e",
    "signature": "0x9ec914ca833a275d3f9f6a824d335fabeac8a0cc79477446ab69cb02b3410d9443bb8d58e880c1f81d5b2d66ee371b7b00718cc5b513e123916eb1b296d7f1591b",
    "signer": "0x380Ec65A36A1655B8F92293e21aA15581356Fa85",
    "userId": "142361762"
  }
}