{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "218702737",
    "entityType": "User",
    "nonce": "0xd5aa426572318361c45c5d5f052b2f3c7a9cf95813fe22b0d6675cb445d80aac",
    "signature": "0x2122ed8caf45b5e01717521a15d3af55bd32138785082ba51cb2fdae023f2d1511b1116066b9c4dbb43b4501da8e320fe991ac0f6dc06852084d82403de3e9351c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}