{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55290787",
    "entityType": "User",
    "nonce": "0x020038fbb5ff6b6ba07f380e50007de37cea8d464ae6276abea40b9328bb9d2c",
    "signature": "0x635cd37fdebc766a41b9f908a8032579219ea784ab0eb6ee14cb8e1248c854023df4b693d953c2a091f9ba4c267bc7df5f81c84dcf2355acd37743e25d9ab3531c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}