{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "21526",
    "entityType": "User",
    "nonce": "0xe07084aea4e97b1c316dad7dda881b21e10389326e91fd9dafb55caf9979779f",
    "signature": "0xa780ed1efb6411b09e21310c8eb11b42c2a2bc2b4138921afc018cdf7fe59ba240c1b70c1c59d673520949d3c56014f8d961fa07d99e48df91d10a2e4c381dbe1b",
    "signer": "0xC7D69243b2161915036b32017e4FC8ea02d7faF1",
    "userId": "80378"
  }
}