{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "352964",
    "entityType": "User",
    "nonce": "0x2e66a49d4c730d1400e1721978d4f1a54379f1e694b21015efd18f14f3ddcbe7",
    "signature": "0xbd153537a5775a4fc90e0b73f32db366fcfb0d62c5ce5bf9d5a7089257e49b400205d175d71f1a0dda7bb863a108ef2b7279e75b2ca917217f33392187f2a1171c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}