{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "57757",
    "entityType": "User",
    "nonce": "0x1f022caa4c70e1a72a15fb0dddea1024fc0d8015d43ad7844fd08089686c2417",
    "signature": "0x8ccdde2ad3869744f12f493d59136cea5e5bcf91975f0dd31d3bd1e087a2a9ac06324c9459ba212ad3eb27a98861f7dd8df4274115f3e7b4f145b36a0907fe801c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}