{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357641",
    "entityType": "User",
    "nonce": "0xbad913939d66ae56117516d46640faac1d9de201f3a5612bf6700bc8d053a57d",
    "signature": "0xd91009d5a86323efb88225e5ff1db51d4252c953498c106982c724fe689240e845f039ec1d062c76bbd802f53a5d44d7cf26d5c95243163e55a9708b10483c851b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}