{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "303524",
    "entityType": "User",
    "nonce": "0x476aed8aafbe4dd560521011fd7d55671c50fee4525813d46ff3e2f225577515",
    "signature": "0x53ffd96cd77078726684b37d1af657277e6944d86a6210cbd8aa199da6f8e3885153dde584ffa44ae616432b3cc79ce40ba222332d6ccfb99ba1d4da547fcda41c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}