{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x50cf039d7ae10442024375eb33a8ddbce7f0527986b6762c598fbca8371f4132",
    "signature": "0x65562664bd0efa37899371fc9bb5af1de4adfd1625416864eb7e524a0017cb863a2532d94e09c92d118339760d4fab5900fa9933f057cacd7050d2d75d55408e1b",
    "signer": "0xC0b1d5B2f1D23A64EC8eB8599B75988529d98d67",
    "userId": "818927171"
  }
}