{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "972835722",
    "entityType": "User",
    "nonce": "0x1b3ab62d6dc86bacb4eb142e0396a81e2bf8b248d2cdb23b431dfc2973c76208",
    "signature": "0xe3d8cb23d82bc94d041213136d9b035177b5072155fb4da0099b0501aee3adc2705be62c26d8bd0063ed0f07409fcfca24fa0f7def567b718f1df5dc54c5a1891c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}