{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0xbb473fe1627092560ea38a164e848c3892d1de72ab7f749f59e4714e9cdfab58",
    "signature": "0xf38d84ba6d886558e339df2c860bc4f24760507d5775cf7f8811dfb96e4aa72b4af8c7b5df4af369cfbdc99225678db23b03b77cadcc827b6c3d0a3869a8d3661c",
    "signer": "0x406fd2b6f6C6cC5622Ac1c5799cE4911D81e02a7",
    "userId": "461949730"
  }
}