{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "446645802",
    "entityType": "User",
    "nonce": "0xa7f5c1e5115ec517dd38f4d3c5880143e3f6b3b40b530dda14953e00d9f75d10",
    "signature": "0x84fefa409ca694e20da03faedc5c1ba20ced3de6aea87ec12da5ab8a010567c90508273ed9fb34ac69bcd6fab93ade542c3c3d635edd09d202734dd8b0310c041c",
    "signer": "0x88ad765B72fb060B3adbae1FA44A6C64722E1781",
    "userId": "236177"
  }
}