{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325172820",
    "entityType": "User",
    "nonce": "0x3012f923d4d4a198552377392ca3ad47eb874d77d988aecb7af129bf737e2f6c",
    "signature": "0xe5f4201545f0c1c9f09f8d6eb91dba8e0c0f65a7c07358281847539a240139f00ec335382b80cae6270449a0b58412eb88d10293eae1f9ecc07d89637f3519691c",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}