{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "107105",
    "entityType": "User",
    "nonce": "0x2ca9ca0ea15a18b08d2b92d7801464c62994c0d1a4fa49e89e35fda91d4a71c1",
    "signature": "0x9a3e08b2b401df94da69a8d8a432c8cbc0d499315b57a51eb6947d68b0b0e7f7209917f2f49234f75484dee92d687f802ccc20b817fcc7f6502ac74a45d688891c",
    "signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
    "userId": "280440301"
  }
}