{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "987917950",
    "entityType": "User",
    "nonce": "0x16c8c8681c974d8af444f60567576c2e0325970fb847fa3d2c78815a560e8d11",
    "signature": "0x47f542f713539e58c78ba7500bc8368e7ebae1d4bffa9eb40b600d689764be6a5f6f36c4e2684d23eb8a0da492a762335efadef6eff413dc6d980b03752416f61c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}