{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8ddd56fe36fd31f21681d215b99dd6cce7f3fc24ff7aceb552401e914826cc57",
    "signature": "0xab185368aaa4e22292d7a68ee17924b68ce12f88a2cd7325a39b35873dc83b00559c37bce66aafcde13ec17b6728a06751c80cb5bd73beed0eee56452913db671c",
    "signer": "0x5e5aC2579481E6F8C2fdc522ff196d6F7C6C2830",
    "userId": "771424265"
  }
}