{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "994858715",
    "entityType": "User",
    "nonce": "0x0585c582ef53fceb7329a18834fdd8778085bfd2067fecc47d3e5f286ba32bd1",
    "signature": "0x10be05841fa36f0c7276788ecb5c02615344b1176bb93e78ddddfa2f388725101f27f4c4885174e3172875fc1c9e1dad8269b3638b21420d23ba6f3a831bd5321c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}