{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x1b98cebcd965f1c8456b60ae7c04a512724f7d0fa115f76ff1a3aa9753528cb9",
    "signature": "0x1e8b0e24cb40d476c0a4e58d9dd289daecc2da445b0564efc6f50b62d18d0c4e5d93b67d839a9b2dd920749bd0a6d24c1671ed92a2687c800a7d0f9b3b33ffc11c",
    "signer": "0x1EeF7f4505C388ca4a4B9A8fC01FcFa7c805D3c5",
    "userId": "17766667"
  }
}