{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "807357610",
    "entityType": "User",
    "nonce": "0x25bba3ec04ea31ac263fe28da738535f1ae43a8e5aba5012661afd0fee8c8bfd",
    "signature": "0x1066f89e02608f8212cfecbee5bf6c3f6282d4416738aefe0c09f7e54098a7ce215132f0d88e9477388da7f7a3afd65ed1fc0772eb45333414f1a9474e5e75511c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}