{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "13589021",
    "entityType": "User",
    "nonce": "0xda3d0a47f003eb93e5324058f5e4204eb627f2a6ae6460a3d994d60947f0a94e",
    "signature": "0xfcb20c7500bad7dd6de39c57eb37758621afbac6474046a3b86dc32ff6b63b22013070cbc6009ce8a62259b967943607b9383023827c5f7f048d6a4d064be24a1c",
    "signer": "0x94d1769762bc3a1e7DCd3e8a31C89Ff199833Da6",
    "userId": "715573876"
  }
}