{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xa5493e2e1472374df2fb907f8483f479f4137a585ad81119c7a171d253e8f605",
    "signature": "0xc707104ca9ba040fcd11e9e61b55928efbee9525980f340904a1a95d98182bce3dd513eed28dc548b22ad4881f4a3d743ab26d0713e18e776f9983c28b7408731c",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}