{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "881446128",
    "entityType": "User",
    "nonce": "0x05b4d3282d923b4ccde4fe4149a36b903911f7eb4a07fe5aa19163d2495a4b12",
    "signature": "0x28c2c993b82e6057b518903ef746cf3eee638b76e85fc6983f6b26b864e98779497d55ae364c8c0c052f4d4e2668bb051bb1585f34eea7f7a1976fdfaf533d761b",
    "signer": "0xc1C84e5C06F7dc5824672906AC6E51CDfeb90aeA",
    "userId": "447798047"
  }
}