{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1710595",
    "entityType": "User",
    "nonce": "0x4aabcad91e8e72e747a5541f63599c719494ce600fa4482c357ae792121d0faf",
    "signature": "0x5598199911ef787aa4899076897f974e609327c2f950a8c080b2a734e1ebd40e5bca5251cf518e3157224e971d1cbfe7c7ef455eb5b58730fb9b43045de7be4e1c",
    "signer": "0xb9160bee52F73DAB98D7cB3210d24Be59194CaC4",
    "userId": "319969"
  }
}