{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "155973826",
    "entityType": "User",
    "nonce": "0x05f6404118a48afd199fbfc2ca57accee92b4a04299b5245bcc8b9ed96927918",
    "signature": "0x7c80435a83f5942bc8280e0e3e0f6e26f7a1b45a7422e0107fe7c336ec47e1a403aff1aa67166ef3be735cbebf511b67987cb16e957c6f6581fcc4a4c23100c31c",
    "signer": "0x3CE226b3CA677B312E9396cc48d4008c70545091",
    "userId": "550328673"
  }
}