{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139146722",
    "entityType": "User",
    "nonce": "0x4a4353df8f32254b4bfe56875262230d5f0bd0ae724ccfaed58ef382c410dc59",
    "signature": "0x816115208b7f317be7378ef7229c3347e5909f047330677fe0b432019a39ad070dac8ff933418458bd88d385ba57137edad1d15f476d2047157b2c1a1c51163f1c",
    "signer": "0x9FF2A7F5Fab732dA57359bb3eD63a95511bD1329",
    "userId": "67863854"
  }
}