{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd7043962028cc982e84068c15c5c6e34686d884decea01608995185bfc84a79f",
    "signature": "0x129fe8855b07d5840b9a5d36423e8a2e14822d6804c4e50e3d3ec883075e47680bc979db3ebdfcc1e5286c248205708fea9025ba201d46a21c4bd38b38615f9a1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}