{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "128185",
    "entityType": "User",
    "nonce": "0xea3e2b20f420b877bbe3936ee1bbc93f2ad8f9fad02f68a0e8336f1e7caa61de",
    "signature": "0x5837f744c3d3cccd161084b46ddec21d5125497bfd0a152cece88d6aed1f74330a020df04af290d6ad6e3063f19544599744fcb8ac7802c0809e75a7198227671c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}