{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "326837",
    "entityType": "User",
    "nonce": "0x5dc9b71e51d40c8e99c6711942b51c3cdf392ab1b833a0719ae0349a4512a114",
    "signature": "0x4efb2b3e4c4e9abe2d3383bba0a154f7166825b1ae8f0d73fea94ee125f77c7c7eaf7c783c3ced1db317895d3d4821a2a9b36416da10b5e76fca5baf36f1eb6f1c",
    "signer": "0xb7C7a8D9d12EBd1Cd438cB065E97280E6D7e912A",
    "userId": "984691913"
  }
}