{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "338745876",
    "entityType": "User",
    "nonce": "0x9b09070aa663ec2c3666d9cf4194c4ad3ccd36fd5795b0e05b298c02c38144f4",
    "signature": "0xbe825f0be769768b7fec26973c347237cca4bd95d5107ca24fc5da236338ed882f941ebc4fd31660b83ac3248ea86945d85d2ea124607115aa6ade9d31a8ca9a1b",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}