{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "162449215",
    "entityType": "User",
    "nonce": "0xc525b3fb17b485e9e2997207ffa271f966b2c02f99bc5e664b097f1d651b47f8",
    "signature": "0x666cb87d87d4755cda5c01533270a85c1711ca0519f0116b3efb5d14539c1cfe33b794858d78604a0cf4ff1fe4281f260d1a5303a5d1ca37d30a56ad7f8b1ab11b",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}