{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "376457891",
    "entityType": "User",
    "nonce": "0xdbcf67b51414403ec84a6eb36f36d48baa26057dfb3b2292bc6e113dde67031b",
    "signature": "0x7dd140e72b660e46e438f7e1d916a4387521ce0823e0390ef85ad6532d35c7215995ac725ce7aad0168710431659f71f9d582bc8a854349d87835e78603191e61b",
    "signer": "0x6eF66a6206A4589bEd5849d15Bc2746C2603b01f",
    "userId": "989336341"
  }
}