{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "275305",
    "entityType": "User",
    "nonce": "0xaa3a376886b5c8330fecaf7ae3fde85741bbbbd0331dcf9c334da0401ba9093a",
    "signature": "0x017b9723906327bd420bcc5252bf4ed376a7ff3e852247d58ae36b3996fdbd5e21c27b608724d70a0074b35c32432276e21d543798bab82e864b799ba3a39c691c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}