{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8645070bd514cda9d5a811e48c6301627a3a6eebaff63b423f16452a29f7c96c",
    "signature": "0x1e6e1f4cf0cfc534fc7c16ab232066a62ee9bcec449c3697323f8b55feb344a33917be58c479639f838290521686766d3b7d75ba403229b57f3f5e7a450db3571b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}