{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52954",
    "entityType": "User",
    "nonce": "0x5436f942f10e667d80e4ba1d5b2b9ee9e19852d3c991b9bf6f6c67ad073e4676",
    "signature": "0x09e3acf0f7f28645fcb741357b6b6ab9c5e418fed02609faf4c1fb3d4fa623c14390289e22b737b1f88c878b66b1fde6794fccaf708b26c551643d5f5bd9ab6f1c",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}