{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x522e7cdbf36da6d93f407a8f2e63a1ff16832a21300af2c929b10136e9492bc2",
    "signature": "0x8f35160f526906df3e0cbf960727020f3f0348bbd06f0267aebf67425cbe0ae564203e74150e772456d1a17fa24b25a34f020390c213065f2d89bd44d594f4681b",
    "signer": "0x81f60DEAd0cdA833Ad17fe7Ddd37b36E62630205",
    "userId": "132087202"
  }
}