{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1203154",
    "entityType": "User",
    "nonce": "0x5ad63d08889774c4a1e22b85ccdaccb92d4bb6aee1e92c51a32e8dee644c9fed",
    "signature": "0xbbd3cbab2c90b67b0ad730d07b88a6b511233068cf3464c1681fbdd681840ee44e6a2b75b07cfcc652c83a3b765b020964ec13bb9161da1c5c0540b4f18b5d3c1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}