{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1010239",
    "entityType": "User",
    "nonce": "0x6efa3b20574c1569bfe478e47897d35c09da87d88ff2e8c5ec4f4f204e5f42f5",
    "signature": "0xed06541d34ca9f7ee40e1a5e7e14adc875dfcab6e2ef699b2bcfeadfd2adceea76721d5d8db8c97e543f356ba1cca569d4ae6164d5cba6f2f6c41f95bb502fc61c",
    "signer": "0x661038958CaBEA62127d3E61af25e811a6a1538A",
    "userId": "7339292"
  }
}