{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2029574",
    "entityType": "User",
    "nonce": "0x33476f01ea1b9d2633d9c8608b17bd42166e801d45a175cc855a8eca46202096",
    "signature": "0x74ac8e1885a9daa63c26a6731c9d96cc77c8f0d4b91ea5f2b29a02d0b4560a330c04cffa68739178e8291d38b55d7791c992ee6faff878b58250ff96cb96a7921c",
    "signer": "0xa899e54a1aE2f8D645E14e3E1EBF6398971ece5A",
    "userId": "906687997"
  }
}