{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1839533",
    "entityType": "User",
    "nonce": "0x42a86869645f47aacbf1be9577fc030a6bd4d84d074e1e7afa8bb9d20eda74ff",
    "signature": "0x054d9096d03c9350f7374dc114f7d9945e09e38acfc8dadf4305f7359f4abda55799d96ebfe57c9ba515e82998354feb98a0d59d8b88438d232ee956b5147a751c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}