{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157290",
    "entityType": "User",
    "nonce": "0xee878f8f4cbece42fb1d445f1f42a94cef64588ad5cb505483e05d016a215cb3",
    "signature": "0x3152bf1f8f53a75b2dde8a3447c9b9d165080b97363c90ce8e2e32453d2ee62676a3b03d5ca38d5d93535c941381bc2c7c810344961e3f5c4d0011b5d42b3c321c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}