{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1882608",
    "entityType": "User",
    "nonce": "0x5a45004a7a6c55cb3bb91a284ed0c377f6207b40ea725b9f34c0864efa003bd4",
    "signature": "0x325ade56bc16a69ff10e78c9ca4537269d02a8fb42b6903435b34e52d05b59490c42f8e56ead8fad234e3a9359ec1444fa9819be016c68230858527158a67a5a1c",
    "signer": "0x712Aca9aA6ac07F98dcEC338Be9C15c3Dc47d569",
    "userId": "12730129"
  }
}