{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "9501",
    "entityType": "User",
    "nonce": "0x83510e4704d415c7c7c8315d900597d5dfa28deb10da9a8064586d80434a3fd9",
    "signature": "0x63e323cbbd7d02c3ce5dfa53e74ab98bdaabcb5efd34f9f4fd46b17a616e2fcf010756d3276a9307cd440f8fbd8bcd2b976894988bd48f79b6bc763dd4d939cd1c",
    "signer": "0xCedE64dcD8b0FdEDBdADF4b0ba433797eD6301c9",
    "userId": "638733607"
  }
}