{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154318",
    "entityType": "User",
    "nonce": "0xadd5e490605da8e380597a149b73356f8bc594a26c988771495c6572e5cb2f2b",
    "signature": "0x12c25d24ce6baee9f76a86062fbc093e7c8eeac3b2d283e18810e86eab04ab050a4766de68f41c6e191c1299cf7bc6dcc48c97709359730d397da1ad278207d01c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}