{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x9e847631f2007325a230e88d37196edc2340068c92468f2e8d91b4fbccc6ff4f",
    "signature": "0x85c24dc30be41bf31a926160310da31582e3d755b1678f4db0891bf72421fb1a627cf96374c8b0cd191c20e6f84609533f80ca51b695b40b47b8edfab7c30f6a1b",
    "signer": "0x7b494d7b08190fEc1Fb8F19D19A8bB37B88aDaBa",
    "userId": "46378101"
  }
}