{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb6b27e4adca1fd91f6a91f946e5897a0a546804b30f56df85d5afec052674a43",
    "signature": "0xad4e32ded6129408c3407174a2159cf4425658f3ae081280dbd72d4eb9d3b1364f48887c6272b09c809e803e4f4bff3027a6c3ff1d0538558a291cf3b4df7af21b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}