{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "139",
    "entityType": "User",
    "nonce": "0xab2d19c472dc076c4be75ca45c0d9df5d5d9e490ff1d0d34befaa44de153704d",
    "signature": "0x13dd0026fc02be113bea49c88ebf6c22fde536a9346bcacb0988e2b1d89730fd4d65c75b6dc3735ddb1e3b6a090e7fb374e88f39860658c3d6e6dbae21e92d7a1b",
    "signer": "0x7a252808bd60a26fe5184c95eb104CfADdA8D4C1",
    "userId": "186415718"
  }
}