{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x149b2a9cdbfee53da30b978eba6a89223f66c0e5eaaf2bc1b35369632bfd40cd",
    "signature": "0xf336e782d504c944c51dc027a7d50eba5546e74be43d3b9d57de3002fc90d5fa25c72357a7a97a1287f9746f4b6e8d2f2855088c9a214bb1e4cd46c8a76cb2861c",
    "signer": "0x9333fc681dF661803754A168cCaD828c8246dfa3",
    "userId": "305150222"
  }
}