{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148312",
    "entityType": "User",
    "nonce": "0x6df48ce8aa307d856a9cd1a6171afa2210aeb4c4d14b03f3a74a98cb500c0932",
    "signature": "0x7f4ada2b8f9677f215f9b56a7edd0d196b2017a85efc4bde763be960b6f1a12e392719edd76a41dc646e668ea38738490e561fe0346ef4114c1abb977e6a700c1b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}