{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8142aceab138923971efd19ff476a0e641e8756f8486010ed180446c32bb9c34",
    "signature": "0x869d17686a97b43ac4c1b6820094892eee3b312c2643e888cde0de9d94923ba02ab39f00cdb3778b0ccc40d89412115fa291fa71f7cbc2f655d94f9c8e6dc1e81c",
    "signer": "0xC0d6317CCf5316e4d6325f07BCC2674333170751",
    "userId": "523649423"
  }
}