{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "951886446",
    "entityType": "User",
    "nonce": "0x724709e42b63ca051cff67034551ff54368cab36b035dc078d01e5fc1773bd41",
    "signature": "0xd59206dbe0dcfed8025323a207920e1f7638f80851075211a006dc0922e632cf4286c0320e8c58b8643718956649f290252252a211e79cb2705f3eda452cedb71c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}