{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "56",
    "entityType": "User",
    "nonce": "0xaa907c025ae2c7a702ad4400c956cb5a4b653460a38c4f222517b72b570078f6",
    "signature": "0x322cab1384e52c653a06ba70b1aa7a9e14ff26f5f5b62145b88b8df4ecb2f2905329d0e90590a556ddd36b32ead71ed5d678353f9799544fbb8bca973a0ca4071c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}