{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0x3ac82f0772b9bde08aff4e668be56d5dc58d703b532062d0dab30f442b58d547",
    "signature": "0x8c5af38125c1a5d0e0da213737d92579fa90ac76374701a40bf7aa3f8d72b6b67a7d4abc50cc9d998f6538f49692fcac26bc8345327d5d6a3af470456589bdf21b",
    "signer": "0xb15d7053c985Edf1d74fFc9893ab67Fdc2B33090",
    "userId": "211545300"
  }
}