{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "127776",
    "entityType": "User",
    "nonce": "0xb15b85f1ec505c2b75aadac9181d50ba4d397723aa49e32107318f0df958f1ee",
    "signature": "0xebd4f331bcc0796ab24d61340fbd1749ef3ba00e8ac2317333e0ae2ec6f2ab455e5d79397967d698484b6ccdc4ca7c5b58933a253f0758aecffe3a3cefd7fec01c",
    "signer": "0x474B8467757bEdBa76afC2394cfCb801C991B143",
    "userId": "815537464"
  }
}