{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf1f046f7ee2f45145638676749b9ab5729a7661bd8ed3c00278e01b7672d25aa",
    "signature": "0xc63b687af2fd766243486e5651c2653e8b8f17e227e8223c1f793a741a8e28f041925ad1ebe3794fb4fc7ddd08635a27008812c90424386431150d9ee011ad991b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}