{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "319048",
    "entityType": "User",
    "nonce": "0xa40da6e5572a1ea5fb2b85620fe4473dfe4911f2426f106f277a91d678ed3504",
    "signature": "0x97f2d79329049f4a6196232f0886abded4e8ec148e83caeca33817f222d07dfe103431157c40226bdf005f06eb427071391d81899a319f5e2c547b6514db804b1c",
    "signer": "0x9b682c779356138D1D188CAB373b0F44a2d43d09",
    "userId": "512022848"
  }
}