{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd24b9da0774db3857d186fe912c026368b3050936abf19024b7c3617a646f1e6",
    "signature": "0x0f13bdce82f29c884da2dde7f9530a4bda19fccb23804ce76e2c5550c2c5c4ce3a3f0854e9d45bd1e03b1f1f090ffba15a59535e197d99c1f7def41ac20737bb1c",
    "signer": "0x1523C2bDc77CB5d624d3C9b45C74D41322C6a5b1",
    "userId": "759537297"
  }
}