{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "35666",
    "entityType": "User",
    "nonce": "0x12e5ed6f93c1890e925b6b35042c7441c9949ddcaf9ef60b6cf875cead15a09a",
    "signature": "0x9a2cdff75fcd5f9ea85ac9cbafdd90d086ce89e52fc165f77806218d417da902311da0369560dfe81ea0b7fa4bb37e68c5b7a1a0d2ffc0c62c9465afbf9487a81b",
    "signer": "0x2b012Ef37cb9315271f0AC801DBbec07c0D4578d",
    "userId": "506789556"
  }
}