{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2867",
    "entityType": "User",
    "nonce": "0x20788e9f5399b3bf234847de08e34d14b9bb550fc5018a276e4f86ba59607cf3",
    "signature": "0x5c119c3ac51b3304e8d5d78e1f67a5d4c3464cae9ea054042d193df3ae88fc4b18c9061aa02a09f33b274a332b85eaf0f57f45edd9905a3438bb088686482bb61c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}