{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190141",
    "entityType": "User",
    "nonce": "0xb6b72914dfe21fa62440c493a9d6f9baefe7bbade84ca40f9d552b97e130f6d1",
    "signature": "0x7aa2c8ed4bcdbe11c4c9047450ba495c1fcdf58d45645b6e231d05626afd49725a890a8f0cd1f753a4fc122b064728087134f29a959d2a9892ac974a2bc3b5af1c",
    "signer": "0xFA54BdDbc2fd0fA514bA36393EF2F5a80Ee9C49b",
    "userId": "428192787"
  }
}