{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20914",
    "entityType": "User",
    "nonce": "0xff7668833780f030185802a757b4debf75e283d688275e8fe61a70b1bc5e4f28",
    "signature": "0x2ca15e2df0bbce3505a81bb6878c04112666e57d7116573a38bd481fc8d0e6de00ada542e774cbe26460b117db32e3ce7436f922564444e7441d4373c6f6957e1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}