{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73735",
    "entityType": "User",
    "nonce": "0x1de3fc386db913cac852fa4a130723a4ed74d6839264e02b050ee3e46f786727",
    "signature": "0xe9b578530ef0aebf8b54754bc97d69b3c647398bf4ad014683bfc1921c2108ef0d7f11ccf9e3de1b3f6bcc34d46c779cf57147ab21241f4cfb32bf1f0651edee1c",
    "signer": "0x720537125Aa4b451266209E0d508D7576a4bAF94",
    "userId": "942771296"
  }
}