{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "887547386",
    "entityType": "User",
    "nonce": "0x9d7eae8abcc69a47d86e26d78372252a56f3cf8e5d9bbb89ee6a59328416030b",
    "signature": "0xac4b20aafe002f4d3386b1899d079859bda9d066f93c9db8aa7e9203e70ab52540af32806820ffac08bff14b98d684713cf90c841011cbcba8bdab274cb548541c",
    "signer": "0xE09A95aA63d8B1AE975406d646074B73ffBD4ACC",
    "userId": "27841"
  }
}