{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "100139",
    "entityType": "User",
    "nonce": "0x0d2cea58958b49ef12089990afbf4199cbff15c54bd51ebe03edb579226225be",
    "signature": "0x3f5dc579b2bbb8136dce0599fa70272d233c5378c7d1c269a28e2407614f46fc7f283686c394b230723886b11e38aff908326a2f89d4e57af1ee9f01136f382b1b",
    "signer": "0x68a290bdF97c9a69319e6C1Aa0E897f7Af453cED",
    "userId": "200282413"
  }
}