{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "175899",
    "entityType": "User",
    "nonce": "0x60ad479d24b3e7815cdf5f0399e1f4b7f35c9d281e9c2deb50142cde96f987a1",
    "signature": "0xe861f4da29ffc2bdb55b5704e26eeb23e5de7229c0c4725b9f1657bbf113befd2336eb5bb0e340a3c80110a89556b9e4ab9f1c080b3222905d983a29de21b01a1b",
    "signer": "0x55F8937EF7902E83b15F5BB7c7bf72a0a2989C54",
    "userId": "233666542"
  }
}