{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9cf9b19a7c7621dc4f5a331ebbd9e973089d1496e0f77812be5611edff2a2c41",
    "signature": "0x8d2c3e58c87a2b82eaef25421eb530d3208eebb39cb24f319eb8b61418887a5d2478a1cffada4827225bd93ae6a2c73b028c23b1bb979daa0c9018e495e5b7811c",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}