{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5568",
    "entityType": "User",
    "nonce": "0xdde945569abbeb007788d6fb5cd2e886c755ebb32e424d5298571360ff45463d",
    "signature": "0x963a9bcf492acd75e6f30519c88cae2944f96c9973060bdd1ca777d620442b57502a37a5a89525d8366336ac3d8385061dc84714065675c165392a74c2c4bcb31c",
    "signer": "0x2d4E313C5C5BBeCd31f664627b0a91361e5D04D1",
    "userId": "106406"
  }
}