{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "189763",
    "entityType": "User",
    "nonce": "0x6d3d0a6ba63b193563b4bfffa09d640e30a4024f16f0c6efca65e6f335ce86ae",
    "signature": "0x16e63f15d101e54e36cc38c7dece4cac41477a45824aabe5f2e01000937bdb2835c2b785662c2ef7a12f660d0a3c1985da83caed573762a6a7cd657260a790551b",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}